Portland, Oregon Weather Conditions

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Current Conditions

  • 47°
  • Overcast
  • Wind: South 5 mph
  • Humidity: 90%
  • Visibility: 10.0 miles
  • Dew Point: 44°
  • Pressure: 30.28 in. +

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Rain
Rain
Rain
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Chance of Rain
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37°
41°
46°
48°
45°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Rain
  • High: 50 °
  • Low: 43 °
  • Rain
  • Monday
  • Chance of Rain
  • High: 55 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 55 °
  • Low: 46 °
  • Chance of Rain
  • Wednesday
  • Fog
  • High: 54 °
  • Low: 43 °
  • Fog
  • Thursday
  • Mostly Cloudy
  • High: 52 °
  • Low: 37 °
  • Mostly Cloudy

Forecast for Portland, Oregon

Updated: 7:00 PM PST on November 22, 2014

  • Sunday

    Overcast with rain. High of 50F. Winds from the SSW at 10 to 15 mph. Chance of rain 80%.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 43F. Winds less than 5 mph. Chance of rain 40%.

  • Monday

    Overcast with a chance of rain in the afternoon. Fog early. High of 55F. Winds less than 5 mph. Chance of rain 30%.

  • Monday Night

    Overcast with a chance of rain. Low of 45F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of rain. Fog early. High of 55F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast. Fog overnight. Low of 46F. Winds from the SSE at 5 to 10 mph.

  • Wednesday

    Mostly cloudy in the morning, then overcast. Fog early. High of 54F. Winds less than 5 mph.

  • Wednesday Night

    Mostly cloudy. Fog overnight. Low of 43F. Winds less than 5 mph.

  • Thursday

    Mostly cloudy. Fog early. High of 52F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Low of 37F. Winds from the East at 5 to 10 mph.

  • Friday

    Mostly cloudy with a chance of rain. High of 48F. Winds from the East at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Mostly cloudy with a chance of rain. Low of 41F. Winds from the East at 5 to 10 mph. Chance of rain 50%.

  • Saturday

    Mostly cloudy with a chance of rain. Fog early. High of 52F. Winds from the ESE at 5 to 10 mph shifting to the South in the afternoon. Chance of rain 50%.

  • Saturday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 37F. Winds from the South at 5 to 15 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Sunday

    Partly cloudy with a chance of a thunderstorm. Fog early. High of 43F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.

  • Sunday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 36F. Winds less than 5 mph. Chance of rain 50%.

  • Monday

    Overcast with a chance of a thunderstorm. Fog early. High of 41F. Winds from the ESE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Monday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 36F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 39F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Mostly cloudy with a chance of rain. Low of 39F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Clear. Fog early. High of 41F. Winds from the SE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 2:36 AM PST

Temperature: 45.7 °F Dew Point: 44 °F Humidity: 94% Wind: North at - Pressure: 30.34 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Portland - West Hills, Portland, OR

Updated: 2:39 AM PST

Temperature: 43.6 °F Dew Point: - Humidity: - Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Lair Hill, Portland, OR

Updated: 2:39 AM PST

Temperature: 45.9 °F Dew Point: 45 °F Humidity: 96% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 2:28 AM PST

Temperature: 45.2 °F Dew Point: 44 °F Humidity: 97% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 2:27 AM PST

Temperature: 45.2 °F Dew Point: 44 °F Humidity: 97% Wind: SW at 1.0 mph Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:33 AM PST

Temperature: 47.3 °F Dew Point: 45 °F Humidity: 91% Wind: North at 2.0 mph Pressure: 30.24 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: South Burlingame, Portland, OR

Updated: 2:39 AM PST

Temperature: 45.9 °F Dew Point: 44 °F Humidity: 91% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 1.79 in Windchill: 46 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 2:37 AM PST

Temperature: 45.1 °F Dew Point: 45 °F Humidity: 99% Wind: Calm Pressure: 30.25 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 2:39 AM PST

Temperature: 47.5 °F Dew Point: 45 °F Humidity: 92% Wind: SSW at 5.0 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 2:25 AM PST

Temperature: 46.9 °F Dew Point: 46 °F Humidity: 95% Wind: Calm Pressure: 30.27 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 2:39 AM PST

Temperature: 48.0 °F Dew Point: 47 °F Humidity: 95% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Irvington, Portland, OR

Updated: 2:39 AM PST

Temperature: 47.0 °F Dew Point: 46 °F Humidity: 95% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Laurelhurst, Portland, OR

Updated: 2:39 AM PST

Temperature: 46.4 °F Dew Point: 42 °F Humidity: 86% Wind: West at 3.6 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Creston Park, Portland, OR

Updated: 2:39 AM PST

Temperature: 46.2 °F Dew Point: 45 °F Humidity: 96% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: West Hills, Portland, OR

Updated: 2:39 AM PST

Temperature: 44.1 °F Dew Point: 44 °F Humidity: 99% Wind: South at 2.1 mph Pressure: 29.54 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Raleigh Park, Portland, OR

Updated: 2:38 AM PST

Temperature: 44.5 °F Dew Point: 44 °F Humidity: 97% Wind: South at 1.0 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Forest Park, Portland, OR

Updated: 2:26 AM PST

Temperature: 43.4 °F Dew Point: 43 °F Humidity: 98% Wind: WSW at 2.0 mph Pressure: 29.42 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: SW Portland - Tryon Creek, Portland, OR

Updated: 2:34 AM PST

Temperature: 43.7 °F Dew Point: 43 °F Humidity: 99% Wind: Calm Pressure: 30.29 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: West Slope, Portland, OR

Updated: 2:38 AM PST

Temperature: 44.5 °F Dew Point: 44 °F Humidity: 98% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Cedar Mill, Portland, OR

Updated: 2:36 AM PST

Temperature: 43.5 °F Dew Point: 42 °F Humidity: 93% Wind: North at - Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Torreyview, Portland, OR

Updated: 2:39 AM PST

Temperature: 45.3 °F Dew Point: 45 °F Humidity: 98% Wind: Calm Pressure: 30.73 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Woodstock, Portland, OR

Updated: 2:39 AM PST

Temperature: 46.7 °F Dew Point: 45 °F Humidity: 92% Wind: Calm Pressure: 30.20 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: West Portland Park, Portland, OR

Updated: 2:37 AM PST

Temperature: 44.3 °F Dew Point: 43 °F Humidity: 94% Wind: SSW at 2.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Ardenwald Station #1, Portland, OR

Updated: 2:35 AM PST

Temperature: 46.7 °F Dew Point: 45 °F Humidity: 94% Wind: ESE at 1.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Garden Home, Portland, OR

Updated: 2:34 AM PST

Temperature: 44.3 °F Dew Point: 44 °F Humidity: 98% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Mt Tabor, Portland, OR

Updated: 2:35 AM PST

Temperature: 46.7 °F Dew Point: 45 °F Humidity: 95% Wind: NE at 2.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Raleigh Hills, Beaverton, OR

Updated: 2:39 AM PST

Temperature: 46.0 °F Dew Point: 44 °F Humidity: 94% Wind: SSW at 3.4 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Humboldt, Portland, OR

Updated: 2:39 AM PST

Temperature: 45.5 °F Dew Point: 44 °F Humidity: 96% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Portland, OR

Updated: 2:39 AM PST

Temperature: 46.0 °F Dew Point: 45 °F Humidity: 96% Wind: SW at 11.0 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Portland - SE Lafayette, Portland, OR

Updated: 2:30 AM PST

Temperature: 46.0 °F Dew Point: - Humidity: 96% Wind: North at 4.5 mph Pressure: 30.00 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: Leahy & NW 94th Tr., Portland, OR

Updated: 1:10 AM PST

Temperature: 44.1 °F Dew Point: 42 °F Humidity: 94% Wind: South at 1.0 mph Pressure: 30.25 in Hourly Precipitation: 0.04 in Windchill: 44 °F Graphs

Location: East Beaverton, Beaverton, OR

Updated: 11:12 PM PST

Temperature: 44.1 °F Dew Point: 43 °F Humidity: 97% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Foster-Powell, SE 63rd, Portland, OR

Updated: 2:39 AM PST

Temperature: 47.0 °F Dew Point: 46 °F Humidity: 97% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Forest Heights, Portland, OR

Updated: 2:30 AM PST

Temperature: 43.3 °F Dew Point: 43 °F Humidity: 100% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Beaumont-Wilshire, Portland, OR

Updated: 2:39 AM PST

Temperature: 46.0 °F Dew Point: 42 °F Humidity: 87% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
930 PM PST Sat Nov 22 2014 


Synopsis...showers will gradually decrease this evening and late 
tonight. The next front will bring rain and mountain snow to 
southwest Washington Sunday morning...moving south throughout the 
day. Snow levels will remain near the Cascade passes...but 
accumulations are expected to be minor for the northern Oregon 
passes. A flat upper ridge will build into California and Oregon 
Monday and Tuesday...but should remain weak enough for systems to 
clip our northern zones with occasional wet weather. Valley 
inversions will likely build in the central and south Willamette 
Valley...with fog possibly becoming more persistent next week. 
Another organized frontal system may bring more rain to the region 
for Thanksgiving weekend. 


&& 


Evening update...with the loss of daytime heating...shower activity 
has decreased significantly over the past few hours. Some scattered 
showers remain...but overall the air mass is becoming more stable. 
Coverage of snow showers in the Cascades has also decreased...so we 
cancelled tonights Winter Weather Advisory a little early. Scattered 
snow showers may still result in localized accumulations of an inch 
or two above 3500-4000 feet. 


There have also been some patches of clearing this evening... 
allowing for some radiational cooling. Therefore we cooled low temperatures 
by a few degrees tonight in the valleys...and added a little more fog 
to the forecast. 


Looking further north...a well-defined and compact low pressure 
system is pushing into haida gwaii...with a secondary low developing 
off Vancouver Island. This secondary system will be the one 
responsible for pushing another front southward across the forecast 
area...with rain developing along the Washington coast by sunrise and 
spreading south throughout the day. The snow level will remain around 
4000 feet much of the day. Combine this with decent orographics and 
strong jet dynamics...and it appears our Snow Advisory for the South 
Washington Cascades looks good. For now it appears the best dynamics will be 
in the left-exit region of the jet over Washington. Model guidance 
has been fairly consistent in showing a sharp quantitative precipitation forecast gradient south of 
the Columbia. Therefore the Oregon Cascades remain out of the Snow 
Advisory for Sunday...but Mount Hood may receive close to the 
necessary 6 inches for an advisory. Areas further south will see much 
less. Weagle 


/prev disc issued 256 PM PST Sat Nov 22 2014/ 


Short term...tonight through Tuesday...a few upper short wave 
troughs moving across the far NE Pacific will maintain convective 
showers across the Pacific northwest this evening. Freezing levels are are 
currently around 4500 feet. Web cams shows snow showers at the 
Willamette...santiam...and Tombstone passes which are at around 
5100...4800...and 4200 feet respectively. This suggests that the snow 
level is currently between 4000 and 4000 feet. The snow level will 
change very little tonight and Sunday. 


The showers are decreasing this afternoon...but satellite imagery 
shows more showers offshore approaching the area. Lightning has been 
detected with these offshore showers and have continued the slight 
chance for thunderstorms through 7pm. Since these showers may not 
make it to the Cascades until around 9 PM am hesitant to end the 
Winter Weather Advisory earlier than the current midnight end 
time...even though there may be a considerate break in showers 
between 4 and 9 PM. 


The showers will decrease after midnight tonight as an upper level 
ridge tries to build over the area. Cloud breaks may lead to 
radiation cooling and fog development late tonight into Sunday 
morning...especially for the interior valleys south of Salem. The 
north is less likely to have fog due to slightly stronger winds and 
possibly cloudier skies. The cloudier skies will be due to the next 
approaching front that will be approaching from the northwest. 


Despite the building upper ridge...another surface front will sneak 
into the area Sunday. This front does not look well defined on 
satellite imagery yet...but the models are in great agreement that 
the front will begin rain at the SW Washington shortly after 
sunrise...sliding southward through the day. 


The highest quantitative precipitation forecast will be for areas north of the Columbia River where 
the SW Washington coast and the Willapa Hills can expect around a 
half an inch of rain Sunday and Sunday night. The SW Washington 
Cascades will see higher rainfall totals...around 0.75 to 1 inch for 
elevations below 4000 feet...and possibly 4 to 9 inches of additional 
additional snow above 4000 feet. Have therefore issued another Winter 
Weather Advisory for the SW Washington Cascades for elevations above 
4000 feet. 


Precipitation will be less for northwest Oregon and expect amounts to 
become gradually less from north to south...with totals from 0.40 
inch just near the Columbia River to 0.10 inches across Lane County. 


Showers will dramatically decrease Sunday night and Monday and expect 
more valley fog Monday morning. Monday will be mostly dry...but northwest 
Oregon will be between two weather systems...one to the SW and one to 
the northwest. Models are leaning towards keeping these storms offshore 
Monday and have reduced probability of precipitation quite a bit. However the presence of 
these two storms warrant at least a slight chance for the coast and 
Cascades. 


The two weak storms may merge offshore Monday evening and push 
onshore Monday night into Tuesday. The models are not in great 
agreement on this but have increased probability of precipitation. The southern system should 
bring warmer air to the region and raise snow levels well above the 
passes Monday and Tuesday. Tj 


Long term...Tuesday night through Saturday...the models are 
currently showing the upper level ridge flattening out on Tuesday. 
They tend to keep most of the moisture to our north which justified 
lowering the probability of precipitation through Wednesday afternoon...but keeping a slight 
chance of rain for the northern portions of the forecast area and 
along the coast. The ridge builds slightly on Thursday...but a weak 
shortwave could bring another round of rain through Friday. A much 
stronger and wetter system looks to move in over the weekend which 
could pose a threat to travelers returning after the Thanksgiving 
Holiday. Details at this point are still unknown and will be refined 
with future updates. The good news is that temperatures in the 
extended will be at or above seasonal normals. /64 


&& 


Aviation...expect some patchy MVFR/IFR fog or low stratus will 
form overnight in the valley particularly. Think it will stay 
well mixed enough to keep VFR in control at the coast. Another 
front will work in from north to south Sun morning...bringing 
increasing rain and likely MVFR ceilings to the northernmost taf sites 
starting between 15z and 18z. The front will sag slowly south 
through the day...but the main impacts will continue to be for 
locations further north. 


Kpdx and approaches...a Post frontal showery air mass will lead 
to predominantly VFR conditions into Sun morning. Patchy IFR fog 
is possible after 12z if skies clear out. A front moving in from 
the north will spread light rain and possibly MVFR ceilings in by 
around 18z sun. Bowen/pyle 


&& 


Marine...a general lull in west/northwest winds should last through this 
evening...but another front will move into the waters from north 
to south overnight....bringing another round of solid Small Craft 
Advisory winds...mainly over the northern waters. Winds will 
subside again Sun afternoon and evening before yet another front 
brings more small craft winds on Monday. 


Seas remain around 12 to 14 feet and should change very little 
through tonight. With the approach of the front Sunday...seas may 
increase into the middle teens. With another front on Monday and 
several systems moving through to our north early next 
week...expect seas to remain above 10 feet until midweek. The latest 
enp wave guidance then suggests they fall below 10 feet Tuesday or Wednesday. 
Bowen/pyle 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...Winter Weather Advisory from 7 am to 10 PM PST Sunday for South 
Washington Cascades. 


Pz...Small Craft Advisory for winds from 1 am to 2 PM PST Sunday for 
coastal waters from Cape Shoalwater Washington to Cascade Head or out 
60 nm. 


Small Craft Advisory for hazardous seas until 4 am PST Monday 
for coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


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


&& 


$$ 


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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. 






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