Portland, Oregon Weather Conditions

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Current Conditions

  • 44°
  • Mostly Cloudy
  • Wind: NW 5 mph
  • Humidity: 73%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.16 in. -
  • Heat Index: 42

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Overcast
Overcast
Overcast
Overcast
Rain
Rain
50°
43°
43°
41°
41°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 52 °
  • Low: 39 °
  • Partly Cloudy
  • Sunday
  • Rain
  • High: 50 °
  • Low: 45 °
  • Rain
  • Monday
  • Rain
  • High: 54 °
  • Low: 41 °
  • Rain
  • Tuesday
  • Partly Cloudy
  • High: 50 °
  • Low: 39 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 54 °
  • Low: 43 °
  • Partly Cloudy

Forecast for Portland, Oregon

Updated: 1:00 PM PST on January 31, 2015

  • Saturday

    Overcast in the morning, then partly cloudy. Fog early. High of 52F. Breezy. Winds from the South at 10 to 20 mph shifting to the West in the afternoon.

  • Saturday Night

    Overcast with rain after midnight. Fog overnight. Low of 39F. Breezy. Winds from the West at 10 to 20 mph shifting to the South after midnight. Chance of rain 70%.

  • Sunday

    Overcast with rain. Fog early. High of 50F. Winds from the South at 10 to 15 mph. Chance of rain 90%.

  • Sunday Night

    Overcast with rain. Low of 45F. Winds from the South at 5 to 10 mph. Chance of rain 80%.

  • Monday

    Overcast with rain. Fog early. High of 54F. Breezy. Winds from the South at 15 to 20 mph. Chance of rain 90%.

  • Monday Night

    Clear with a chance of rain. Low of 41F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 50F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 39F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 54F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 43F. Winds less than 5 mph.

  • Thursday

    Partly cloudy with a chance of rain. Fog early. High of 52F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear with a chance of rain. Fog overnight. Low of 48F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.

  • Friday

    Partly cloudy with a chance of rain. Fog early. High of 54F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Friday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 48F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.7 in. possible.

  • Saturday

    Clear with a chance of rain. Fog early. High of 57F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Saturday Night

    Clear with a chance of rain. Fog overnight. Low of 52F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.

  • Sunday

    Clear. High of 61F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 46F. Winds from the SW at 5 to 10 mph.

  • Monday

    Clear. High of 59F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 41F. Winds less than 5 mph.

  • Tuesday

    Clear with a chance of rain. High of 57F. Winds less than 5 mph. Chance of rain 30%.

  • Tuesday Night

    Clear with a chance of rain. Low of 48F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Wednesday

    Clear with a chance of a thunderstorm. High of 57F. Winds less than 5 mph. Chance of rain 40%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 2:30 PM PST

Temperature: 46.9 °F Dew Point: 40 °F Humidity: 76% Wind: North at - Pressure: 30.19 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:31 PM PST

Temperature: 46.8 °F Dew Point: 40 °F Humidity: 78% Wind: North at - Pressure: 30.23 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Lair Hill, Portland, OR

Updated: 2:34 PM PST

Temperature: 51.6 °F Dew Point: 35 °F Humidity: 53% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: APRSWXNET Portland OR US, Portland, OR

Updated: 2:00 PM PST

Temperature: 44 °F Dew Point: 38 °F Humidity: 79% Wind: NNE at 5 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Bridlemile, Portland, OR

Updated: 2:24 PM PST

Temperature: 47.3 °F Dew Point: 38 °F Humidity: 69% Wind: WSW at 4.2 mph Pressure: 29.96 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Downtown Portland, Portland, OR

Updated: 2:24 PM PST

Temperature: 46.4 °F Dew Point: 36 °F Humidity: 73% Wind: North at - Pressure: 30.02 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:31 PM PST

Temperature: 46.8 °F Dew Point: 39 °F Humidity: 73% Wind: North at - Pressure: 30.02 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 2:25 PM PST

Temperature: 46.6 °F Dew Point: 39 °F Humidity: 76% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 2:30 PM PST

Temperature: 47.4 °F Dew Point: 39 °F Humidity: 72% Wind: East at 6.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: APRSWXNET Portland OR US, Portland, OR

Updated: 1:59 PM PST

Temperature: 46 °F Dew Point: 38 °F Humidity: 73% Wind: ESE at 2 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:30 PM PST

Temperature: 46.8 °F Dew Point: 38 °F Humidity: 72% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Downtown, Portland, OR

Updated: 2:31 PM PST

Temperature: 50.0 °F Dew Point: 41 °F Humidity: 72% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Windchill: - Graphs

Location: Brooklyn, Portland, OR

Updated: 2:34 PM PST

Temperature: 50.2 °F Dew Point: 33 °F Humidity: 52% Wind: NW at 1.3 mph Pressure: 29.64 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Hillside, Portland, OR

Updated: 2:30 PM PST

Temperature: 48.7 °F Dew Point: 38 °F Humidity: 65% Wind: North at - Pressure: 29.90 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: Pearl District, Portland, OR

Updated: 2:31 PM PST

Temperature: 46.4 °F Dew Point: 38 °F Humidity: 73% Wind: North at - Pressure: 30.02 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Sylvan Highlands, Portland, OR

Updated: 2:34 PM PST

Temperature: 42.8 °F Dew Point: 34 °F Humidity: 72% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: South Burlingame, Portland, OR

Updated: 2:34 PM PST

Temperature: 47.2 °F Dew Point: 39 °F Humidity: 74% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 1.63 in Windchill: 47 °F Graphs

Location: Buckman, Portland, OR

Updated: 2:31 PM PST

Temperature: 49.1 °F Dew Point: 41 °F Humidity: 73% Wind: North at - Pressure: 30.03 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:31 PM PST

Temperature: 48.4 °F Dew Point: 45 °F Humidity: 88% Wind: North at - Pressure: 30.22 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Creston - Kenilworth, Portland, OR

Updated: 2:31 PM PST

Temperature: 47.7 °F Dew Point: 41 °F Humidity: 77% Wind: North at - Pressure: 30.33 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 2:26 PM PST

Temperature: 48.2 °F Dew Point: 40 °F Humidity: 74% Wind: Calm Pressure: 30.09 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 2:34 PM PST

Temperature: 48.8 °F Dew Point: 40 °F Humidity: 71% Wind: NNE at 2.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:31 PM PST

Temperature: 47.7 °F Dew Point: 41 °F Humidity: 78% Wind: North at - Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 2:31 PM PST

Temperature: 51.2 °F Dew Point: 39 °F Humidity: 64% Wind: ENE at 1.0 mph Pressure: 30.12 in Hourly Precipitation: - Windchill: - Graphs

Location: Raleigh Hills, Portland, OR

Updated: 2:23 PM PST

Temperature: 48.0 °F Dew Point: 38 °F Humidity: 69% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 2:34 PM PST

Temperature: 52.2 °F Dew Point: 34 °F Humidity: 49% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Richmond, Portland, OR

Updated: 2:31 PM PST

Temperature: 47.5 °F Dew Point: 41 °F Humidity: 77% Wind: North at - Pressure: 30.20 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Irvington, Portland, OR

Updated: 2:34 PM PST

Temperature: 51.4 °F Dew Point: 42 °F Humidity: 71% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Laurelhurst, Portland, OR

Updated: 2:34 PM PST

Temperature: 48.4 °F Dew Point: 28 °F Humidity: 45% Wind: SSE at 6.5 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Smith School, Portland, OR

Updated: 2:29 PM PST

Temperature: 48.9 °F Dew Point: 36 °F Humidity: 61% Wind: ESE at 2.2 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: West Hills, Portland, OR

Updated: 1:33 PM PST

Temperature: 45.4 °F Dew Point: 37 °F Humidity: 73% Wind: NNE at 3.5 mph Pressure: 29.44 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: West Slope, Portland, OR

Updated: 2:34 PM PST

Temperature: 48.0 °F Dew Point: 37 °F Humidity: 65% Wind: SE at 7.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Raleigh Park, Portland, OR

Updated: 2:34 PM PST

Temperature: 48.8 °F Dew Point: 38 °F Humidity: 67% Wind: East at 3.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Forest Park, Portland, OR

Updated: 2:21 PM PST

Temperature: 46.7 °F Dew Point: 40 °F Humidity: 76% Wind: NE at 3.0 mph Pressure: 29.27 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Upper Hawthorne, Portland, OR

Updated: 2:33 PM PST

Temperature: 45.5 °F Dew Point: 36 °F Humidity: 70% Wind: ESE at 1.1 mph Pressure: 29.87 in Hourly Precipitation: - 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 
230 PM PST Sat Jan 31 2015 


Synopsis...an upper ridge will remain over the region tonight before 
shifting inland on Sunday. High clouds ahead of an approaching front 
may limit fog development in some areas late tonight...but still 
expect some valley fog...especially for the southern Willamette 
Valley. The first of a series of fronts will move across northwest Oregon 
and SW Washington Sunday...followed by a slightly stronger front on 
Monday. There is uncertainty on whether Tuesday and Wednesday will 
be dry or rainy...but there is greater confidence that the end of the 
weak will be wet. Snow levels generally stay high...but there will be 
chances for new snow at the higher Cascades throughout the week. 
&& 


Short term...tonight through Monday night...water vapor imagery 
shows an upper ridge over northwest Oregon sandwiched between two large 
upper lows...one over the NE Pacific and the other over 
Arizona/Southern California. At the surface...visible imagery shows a 
frontal system offshore with a warm front just offshore the British 
Columbia coast...and a cold front around 135w. This is resulting in 
an easterly surface pressure gradient with the Troutdale to dalles 
gradient around 6 mb early this afternoon. 


Gusty east winds blowing through the Columbia River gorge have helped 
erode the fog and low clouds from the northern Willamette Valley 
early this afternoon. The fog has improved for the southern 
Willamette Valley...but areas of low clouds will likely hang around 
through tonight and possibly into Sunday morning. The upper ridge 
will remain over the area tonight and expect a return of at least 
stratus to the inland areas that have cleared today. The presence of 
high clouds ahead of the front should inhibit fog development 
somewhat and do not expect as much dense fog as has been observed the 
past few nights. The easterly gradient will continue through tonight 
limiting the chances for dense fog to the north. However...think the 
southern valleys still have a chance for some at least spotty dense 
fog. 


The cold front should begin to spread light rain to the region early 
Sunday morning...with rain continuing through late Sunday afternoon. 
This front should generate 0.25 to 0.5 inch of rain for the higher 
terrain of the Coast Range and the Cascades with less than 0.25 inch 
for the low lands. Snow levels should be between 6kft and 7kft Sunday 
and possibly lowering to below 6kft with the Post-frontal showers 
Sunday night. 


Another frontal system will approach Sunday night with a warm front 
bringing rain mostly to the southern areas Monday morning before the 
cold front pushes in more widespread rain Monday afternoon and 
evening. This front is slightly stronger than the Sunday system and 
will produce slightly gustier winds for the coast and slightly higher 
rainfall totals. Expect 0.5 to 0.75 inch of rain for the higher 
terrain Monday morning through Monday afternoon with between 0.2 and 
0.4 inch for the low lands. 


Snow levels will be between 5500 and 6500 feet Monday with possibly 6 
to 8 inches of new snow for the very high elevations of the South 
Washington and northern Oregon Cascades. Snow levels will lower to 
near the Cascade passes Monday night into Tuesday morning. Weakening 
Post-frontal showers may bring a dusting of snow to the Cascade 
passes overnight Monday and Tuesday morning with spotty 1 to 3 inches 
of new snow above 5000 feet. Tj 


Long term...Tuesday through Friday night...models begin to diverge 
Tuesday with the GFS forecasting an upper ridge to return over the 
Pacific northwest and the European model (ecmwf) forecasting a weaker ridge further 
offshore...and a shortwave trough impacting the region. There is a 
possibility that both of these models are overdoing their 
forecasts...with the GFS ridge and the European model (ecmwf) trough being too strong. 
The GFS solution would result in dry weather for northwest Oregon Tuesday 
and Wednesday whereas the European model (ecmwf) would result in wet weather. Think 
there will be a bit of both and expect a warm front will bring very 
light rain to the region Tuesday with drying for Wednesday. This pans 
out as a low confidence chance of rain forecast. 


The models are then in surprising agreement that a period of wet 
weather will impact the region Thursday and Friday...and possibly 
into next weekend as a swath of subtropical moisture combined with a 
series of atmospheric waves sets up over the NE Pacific. This weather 
pattern will likely bring a substantial amount of rain to parts of 
the Pacific northwest...but would like to see the first weather 
systems this weekend and early next week pan out before even trying 
to determine where the heaviest rain will be. Tj 
&& 


Aviation...stubborn LIFR fog remains over the south Willamette 
Valley this afternoon...while elsewhere fog has scattered out. 
High clouds are starting to increase over the region ahead of an 
approaching front...with increasing middle clouds tonight. Patchy 
shallow fog should impact locations from 04z-12z along the 
Columbia River like kkls and the south Willamette Valley before 
middle clouds reach them. East winds through The Gorge will keep the 
pdx/vuo metropolitan areas clear of fog tonight. Coastal sites should 
remain VFR tonight. Light rain should impact the SW Washington/far northwest or 
coasts early Sun morning. 


Kpdx and approaches...VFR conditions will prevail tonight with 
gusty east winds. Strongest gusts will be nearest The Gorge. Middle 
and high clouds increase overnight with ceilings between 5k-10k feet 
after 14z sun. Kpdx may see some brief and shallow IFR fog 
develop if east winds hold off until after 06z sun. /27 
&& 


Marine...the first in a series of progressively stronger frontal 
systems can be seen approaching the region this afternoon...and 
will move through Sunday morning. This first front on Sunday 
brings the possibility of some Small Craft Advisory gusts above 20 
kts while bringing seas up to around 8 feet...but confidence is 
rather low on solid gusts reaching small craft criteria this 
afternoon. The second frontal system moves through on 
Monday...bringing solid Small Craft Advisory winds with gusts 30 
to 35 kts likely. Strong winds will ramp up early Monday morning 
and persist through the day until winds ease behind the front late 
Monday night or early Tuesday. This system will also bring seas up 
to around 12 to 13 feet on Monday. Confidence is increasing for an 
even stronger system Thursday or Friday which could generate 
southerly gales and bring seas up to near 20 feet. /27 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...none. 
&& 


$$ 


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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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