Portland, Oregon Weather Conditions

Severe Weather Alerts

National Weather Service:

Special Statement View All Alerts

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 46°
  • Overcast
  • Wind: ESE 10 mph
  • Humidity: 76%
  • Visibility: 10.0 miles
  • Dew Point: 39°
  • Pressure: 29.87 in. +
  • Heat Index: 41

Select a Section

Click a section below for more information.

Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Fog
Fog
43°
45°
45°
45°
45°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of Rain
  • High: 48 °
  • Low: 43 °
  • Chance of Rain
  • Thursday
  • Chance of Rain
  • High: 48 °
  • Low: 45 °
  • Chance of Rain
  • Friday
  • Rain
  • High: 50 °
  • Low: 41 °
  • Rain
  • Saturday
  • Chance of Rain
  • High: 48 °
  • Low: 46 °
  • Chance of Rain
  • Sunday
  • Rain
  • High: 55 °
  • Low: 43 °
  • Rain

Forecast for Portland, Oregon

Updated: 1:00 PM PST on December 17, 2014

  • Wednesday

    Overcast with a chance of rain. High of 48F. Winds from the East at 10 to 15 mph. Chance of rain 60%.

  • Wednesday Night

    Overcast with rain showers, then a chance of rain after midnight. Fog overnight. Low of 43F. Winds from the South at 5 to 10 mph. Chance of rain 60%.

  • Thursday

    Overcast with a chance of rain in the afternoon. Fog early. High of 48F. Winds from the ESE at 5 to 15 mph. Chance of rain 80%.

  • Thursday Night

    Overcast with rain. Low of 45F. Winds from the ESE at 10 to 15 mph. Chance of rain 100% with rainfall amounts near 0.4 in. possible.

  • Friday

    Overcast with rain, then rain showers in the afternoon. High of 50F. Winds from the South at 5 to 10 mph. Chance of rain 100%.

  • Friday Night

    Overcast with a chance of rain. Low of 41F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Saturday

    Overcast with a chance of rain. High of 48F. Winds from the SE at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Saturday Night

    Overcast with a chance of rain. Fog overnight. Low of 46F. Winds from the SSW at 5 to 15 mph. Chance of rain 80% with rainfall amounts near 1.8 in. possible.

  • Sunday

    Overcast with a chance of rain, then rain in the afternoon. Fog early. High of 55F. Winds from the WSW at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.

  • Sunday Night

    Overcast with a chance of rain. Low of 43F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.

  • Monday

    Mostly cloudy with a chance of rain. High of 55F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 45F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of rain. High of 48F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Tuesday Night

    Overcast with a chance of rain. Low of 45F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.

  • Wednesday

    Overcast with a chance of rain. Fog early. High of 46F. Winds less than 5 mph. Chance of rain 60%.

  • Wednesday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 30F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Clear. Fog early. High of 45F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Low of 30F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 43F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 28F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 43F. Winds from the East at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 28F. Winds less than 5 mph.

  • Sunday

    Clear. High of 41F. Winds from the East at 5 to 10 mph.

Severe Weather Alert Descriptions

 Special Statement  Statement as of 2:35 PM PST on December 17, 2014


... Potential for flooding Saturday night through Monday for
northwest Oregon and southwest Washington rivers...

A storm system developing over the Pacific is expected to bring
heavy rain to the Pacific northwest Saturday evening through
Sunday. As of now... it looks like the heaviest rain will be in
the north Oregon Coast Range and the north Oregon and South
Washington Cascades... but this forecast is uncertain.
Meteorologists will be keeping a close eye on the development of
this storm. This is a classic atmospheric river event that could
produce some areas of very heavy rain.

Rainfall amounts are currently projected as 5 to 8 inches for the
coast... Coast Range and Cascades... with 2 to 5 inches for valley
locations. Snow levels will be high... well above pass level... for
most of this event. If we get these amounts of rain or more...
there will likely be flooding on area rivers and creeks Saturday
night through Monday.

Stay up to date with the latest NWS forecasts at
weather.Gov/Portland or Mobile.Weather.Gov.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 3:01 PM PST

Temperature: 45.3 °F Dew Point: 40 °F Humidity: 83% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Portland - West Hills, Portland, OR

Updated: 3:03 PM PST

Temperature: 42.2 °F Dew Point: 22 °F Humidity: 45% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Lair Hill, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.8 °F Dew Point: 38 °F Humidity: 72% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Bridlemile, Portland, OR

Updated: 2:50 PM PST

Temperature: 43.5 °F Dew Point: 38 °F Humidity: 81% Wind: ENE at 6.8 mph Pressure: 29.69 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 2:52 PM PST

Temperature: 45.3 °F Dew Point: 40 °F Humidity: 83% Wind: SE at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 2:59 PM PST

Temperature: 46.4 °F Dew Point: 41 °F Humidity: 81% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:52 PM PST

Temperature: 45.9 °F Dew Point: 40 °F Humidity: 81% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Hillside, Portland, OR

Updated: 3:01 PM PST

Temperature: 45.9 °F Dew Point: 39 °F Humidity: 76% Wind: North at - Pressure: 29.60 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: South Burlingame, Portland, OR

Updated: 3:03 PM PST

Temperature: 45.7 °F Dew Point: 40 °F Humidity: 80% Wind: Calm Pressure: 29.48 in Hourly Precipitation: 0.33 in Windchill: 46 °F Graphs

Location: Creston - Kenilworth, Portland, OR

Updated: 3:02 PM PST

Temperature: 47.7 °F Dew Point: 40 °F Humidity: 76% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 3:00 PM PST

Temperature: 46.2 °F Dew Point: 41 °F Humidity: 81% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.8 °F Dew Point: 41 °F Humidity: 80% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 PM PST

Temperature: 45.3 °F Dew Point: 44 °F Humidity: 94% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 3:01 PM PST

Temperature: 47.0 °F Dew Point: 41 °F Humidity: 80% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.9 °F Dew Point: 35 °F Humidity: 64% Wind: Calm Pressure: 29.59 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Richmond, Portland, OR

Updated: 3:01 PM PST

Temperature: 45.7 °F Dew Point: 40 °F Humidity: 81% Wind: North at - Pressure: 29.93 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Irvington, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.9 °F Dew Point: 41 °F Humidity: 80% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Laurelhurst, Portland, OR

Updated: 3:02 PM PST

Temperature: 45.9 °F Dew Point: 32 °F Humidity: 58% Wind: Calm Pressure: 29.68 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Smith School, Portland, OR

Updated: 2:59 PM PST

Temperature: 45.5 °F Dew Point: 39 °F Humidity: 79% Wind: ESE at 1.6 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Creston Park, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.3 °F Dew Point: 41 °F Humidity: 81% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: West Hills, Portland, OR

Updated: 3:03 PM PST

Temperature: 44.7 °F Dew Point: 40 °F Humidity: 84% Wind: ENE at 4.7 mph Pressure: 29.13 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Raleigh Park, Portland, OR

Updated: 3:02 PM PST

Temperature: 46.4 °F Dew Point: 40 °F Humidity: 79% Wind: ESE at 1.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Forest Park, Portland, OR

Updated: 2:50 PM PST

Temperature: 44.3 °F Dew Point: 41 °F Humidity: 89% Wind: Calm Pressure: 29.01 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: SW Portland - Tryon Creek, Portland, OR

Updated: 2:54 PM PST

Temperature: 45.7 °F Dew Point: 40 °F Humidity: 82% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: West Slope, Portland, OR

Updated: 2:51 PM PST

Temperature: 46.3 °F Dew Point: 41 °F Humidity: 82% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Cedar Mill, Portland, OR

Updated: 3:01 PM PST

Temperature: 44.2 °F Dew Point: 40 °F Humidity: 84% Wind: North at - Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Torreyview, Portland, OR

Updated: 3:03 PM PST

Temperature: 45.5 °F Dew Point: 34 °F Humidity: 63% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Woodstock, Portland, OR

Updated: 2:55 PM PST

Temperature: 46.7 °F Dew Point: 41 °F Humidity: 79% Wind: ESE at 3.0 mph Pressure: 29.78 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: West Portland Park, Portland, OR

Updated: 3:02 PM PST

Temperature: 43.2 °F Dew Point: 39 °F Humidity: 84% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Ardenwald Station #1, Portland, OR

Updated: 3:02 PM PST

Temperature: 47.3 °F Dew Point: 41 °F Humidity: 79% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Garden Home, Portland, OR

Updated: 3:03 PM PST

Temperature: 46.2 °F Dew Point: 42 °F Humidity: 84% Wind: ESE at 2.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Mt Tabor, Portland, OR

Updated: 3:00 PM PST

Temperature: 43.8 °F Dew Point: 36 °F Humidity: 73% Wind: NE at 1.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Raleigh Hills, Beaverton, OR

Updated: 3:03 PM PST

Temperature: 46.6 °F Dew Point: 39 °F Humidity: 74% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Humboldt, Portland, OR

Updated: 3:03 PM PST

Temperature: 45.7 °F Dew Point: 43 °F Humidity: 90% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Portland, OR

Updated: 3:03 PM PST

Temperature: 42.9 °F Dew Point: 38 °F Humidity: 83% Wind: ENE at 1.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Portland - SE Lafayette, Portland, OR

Updated: 2:50 PM PST

Temperature: 45.1 °F Dew Point: - Humidity: 78% Wind: North at 9.6 mph Pressure: 29.58 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 PM PST

Temperature: 43.5 °F Dew Point: 40 °F Humidity: 87% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Windchill: 44 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
252 PM PST Wednesday Dec 17 2014 


Synopsis...weak low pressure will cross the area this evening with 
showers lingering overnight. Expect fairly quiet weather to start 
the day Thursday. A more organized front will bring gusty winds to 
the coast with rain spreading inland Thursday night and Friday. 
Rising snow levels will limit snow to the highest peaks. Colder air 
behind the front will bring accumulating snow showers for the 
Cascades passes Friday evening and Saturday. Mild and very wet 
weather arrived this weekend. There is potential for an atmospheric 
river and associated heavy rain to develop over the area affecting 
rivers into next week. 


&& 


Short term...tonight through Saturday...a weak and splitting trough 
will send most of its energy south of our area tonight. Will see 
showers taper off overnight as high pressure begins a transit across 
the area. Will also see corresponding snow levels rise above the 
passes and generally limit the amount of accumulations. The ridge 
axis quickly passes east by tomorrow afternoon leading to a largely 
dry day for the interior. 


Another more cohesive trough and frontal system will dig offshore 
with warm frontal rain touching the coast late Friday afternoon with 
heavier amounts by early Friday evening. Timing could be earlier 
depending on model of choice with the GFS perhaps a couple hours 
faster than the European model (ecmwf) and the NAM slower yet. NAM typically does not 
handle warm process rain very well so am putting less weight on it 
to start with. As the rain comes in...a coastal jet develops 
bringing fairly gusty winds to the coast and Coast Range but nothing 
too out of the Ordinary. Not anticipating any highlights but 
probably a run of the mill windy coastal storm. The associated cold 
front come ashore around 12z Friday morning and crosses the Cascades 
around 17z with colder air and lowering snow levels with and more so 
behind it. Precipitation tapers off and becomes more showery in 
nature behind the front. Expect light accumulating snow begins at 
Willamette Pass around day break and lowers to near Government Pass 
later that morning. The snow comes to be too little...too late for 
much appreciable increase in the snow pack with perhaps a few inches 
at the higher passes and less than an inch for Government Camp. 
Higher peaks could see up to a foot...however. Any of the middle 
elevation snow will be rather short-lived as snow levels immediately 
begin rising in anticipation of the Pacific storm track becoming 
centered over the area. 


Main attention this shift has been be placed on the atmospheric 
river event setting up to affect the region this weekend with 
impacts lasting into next week. Raw GFS model run accumulated quantitative precipitation forecast 
amounts exceed 12 inches for portions of the Cascades and 10 inches 
for the Coast Range ending Monday morning. Will see the warm rains 
begin affecting the Coast Range Saturday morning and push quickly 
inland to the Cascades by Saturday afternoon. Most of the heavy rain 
occurs beginning Saturday night. There would be deep westerly flow 
from the surface up to the jet level thus expect this could be an 
ideal orographic situation to extract a maximum amount of rain from 
whatever comes ashore. There is general large scale support from the 
European model (ecmwf) albeit with less quantitative precipitation forecast. Past experience shows following the 
higher GFS quantitative precipitation forecast amounts is still not enough and that reality brings 
significantly more rain. Assuming the current model runs stay 
unchanged in the future...would expect multiple mainstem rivers 
exceeding flood stage as soon as Sunday evening. 


Have issued some outlook products today looking ahead to flooding 
potential with the caveat that models have shifted the focus from 
northern Washington/British Columbia south to our area during the 
past 36 hours. Additional shifting is expected as well as timing 
differences. Stay tuned as this situation evolves over time. 
/Jbonk 


Long term...Saturday night through Wednesday...models maintain a 
flattened ridge over the eastern Pacific for the weekend through 
early next week. With a nearly zonal jet and abundant 
moisture...expect plenty of rainfall to continue through Sunday. On 
Monday and Tuesday...some weak ridging moves over the region but 
showers likely continue in the moist onshore flow. An upper trough 
drops south over the region by midweek with some rather cold air and 
additional precipitation in store. While still some significant 
uncertainty exists with respect to the timing of the precipitation vs cold 
air and just how cold the air is...it does appear that a significant 
surge of cold air may move into the region and therefore...decreased 
temperatures accordingly for the Tuesday/Wednesday periods across the region. 
It does appear that snow levels will drop below pass levels at 
least...and perhaps down into the foothill elevations later 
Wednesday into Thursday. Given the uncertainty...those planning 
Holiday travel during this period should monitor the forecast. 
Cullen 


&& 


Aviation...VFR conditions likely to continue through this 
afternoon. Onshore winds this evening behind the weak low moving 
onshore will allow for ceilings and visible to lower to IFR tonight with 
the development of fog/low stratus. This should hold on through 
Thursday morning...starting to lift back toward VFR around 15 to 18z 
Thursday as winds start to increase out of the south. VFR will 
continue through Thursday afternoon...though low-level wind shear 
will be a concern at kttd and possibly kpdx as 20 knots easterly 
winds from The Gorge undercut increasing southerly winds aloft. 


Kpdx and approaches...VFR conditions to persist this 
evening. Weak winds will could promote the development of fog/low 
stratus after 06z Thursday...dropping ceilings and visible to IFR. This 
should lift back to VFR by 18z Thursday. -McCoy 


&& 


Marine...weak low pressure system moving northward along the 
coast has brought winds up to Small Craft Advisory criteria this afternoon in our 
southern waters. This is weakening and moving onshore...which 
should allow winds to subside for a brief period this evening. 
Winds will begin to increase across our waters Thursday morning 
ahead of a cold front which will move through our waters during 
the day Thursday. Ahead of this front...winds likely to ramp up to 
gale force with a coastal jet fully developed by Thursday 
evening and persist until the front moves onshore early Friday 
morning. 


Seas currently around 10-12 feet will drop to 9 feet later this 
evening. Seas will begin to build again Thursday morning as winds 
increase ahead of the cold front on Thursday. Seas expected to 
build to the low-to-middle teens Thursday evening...subsiding to 
10 to 12 feet early Friday morning. A dynamic fetch approaches early 
Friday...bringing a large swell into our waters. This will cause 
seas to rapidly build Friday morning...reaching 20 feet Friday 
evening. The next strong front approaches on Saturday...with 
gales possible...could build seas already 15 to 20 feet...to 20 
to 25 feet Saturday. -McCoy 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds from 4 am to 1 PM PST Thursday 
for coastal waters from Cape Shoalwater Washington to Cascade Head or out 60 nm. 


Gale Warning from 1 PM Thursday to midnight PST Thursday night 
for coastal waters from Cape Shoalwater Washington to Florence or out 60 nm. 


Small Craft Advisory for hazardous seas until 9 PM PST this 
evening for coastal waters from Cape Shoalwater Washington to Florence or out 60 nm. 


Small Craft Advisory for winds until 1 PM PST Thursday for 
coastal waters from Cascade Head or to Florence or out 60 nm. 


Small Craft Advisory for rough Columbia River bar until 4 am PST Thursday. 


&& 


$$ 


Interact with US via social media 
www.Facebook.Com/nwsportland 
www.Twitter.Com/nwsportland 


This discussion is for northwest Oregon and southwest Washington 
from the Cascade crest to 60 nautical miles offshore. The area is 
commonly referred to as the forecast area. 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.