Portland-Hillsboro, Oregon Weather Conditions

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Current Conditions

  • 40°
  • Clear
  • Wind: Calm
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 37°
  • Pressure: 30.28 in. +

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Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
45°
55°
66°
73°
67°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Clear
  • High: 75 °
  • Low: 45 °
  • Clear
  • Sunday
  • Clear
  • High: 78 °
  • Low: 47 °
  • Clear
  • Monday
  • Clear
  • High: 80 °
  • Low: 49 °
  • Clear
  • Tuesday
  • Clear
  • High: 70 °
  • Low: 44 °
  • Clear
  • Wednesday
  • Partly Cloudy
  • High: 65 °
  • Low: 40 °
  • Partly Cloudy

Forecast for Portland-Hillsboro, Oregon

Updated: 2:20 AM PDT on January 18, 2015

  • Saturday

    Sunny. High around 75F. Winds N at 10 to 15 mph.

  • Saturday Night

    Clear to partly cloudy. Low near 45F. Winds NNW at 5 to 10 mph.

  • Sunday

    Mostly sunny skies. High 78F. Winds N at 5 to 10 mph.

  • Sunday Night

    Mostly clear skies. Low 47F. Winds NNW at 5 to 10 mph.

  • Monday

    Sunshine. High near 80F. Winds N at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low 49F. Winds NW at 5 to 10 mph.

  • Tuesday

    Sun and a few passing clouds. High near 70F. Winds NNW at 10 to 15 mph.

  • Tuesday Night

    A few clouds from time to time. Low 44F. Winds WNW at 10 to 15 mph.

  • Wednesday

    Partly cloudy skies. High near 65F. Winds NW at 10 to 15 mph.

  • Wednesday Night

    A few clouds. Low around 40F. Winds NW at 5 to 10 mph.

  • Thursday

    Partly cloudy skies during the morning hours will become overcast in the afternoon. High 62F. Winds NW at 5 to 10 mph.

  • Thursday Night

    Increasing clouds with showers arriving sometime after midnight. Low 41F. Winds SW at 5 to 10 mph. Chance of rain 50%.

  • Friday

    Overcast with rain showers at times. High 61F. Winds SW at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Cloudy with occasional rain showers. Low 42F. Winds light and variable. Chance of rain 50%.

  • Saturday

    Showers in the morning, then partly cloudy in the afternoon. High 63F. Winds SW at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    A few clouds from time to time. Low 43F. Winds WNW at 5 to 10 mph.

  • Sunday

    Steady light rain in the morning. Showers continuing in the afternoon. High 63F. Winds SSW at 5 to 10 mph. Chance of rain 60%.

  • Sunday Night

    Cloudy with showers. Low 43F. Winds SW at 5 to 10 mph. Chance of rain 50%.

  • Monday

    Considerable cloudiness with occasional rain showers. High 64F. Winds WSW at 5 to 10 mph. Chance of rain 60%.

  • Monday Night

    Occasional light rain. Low 43F. Winds W at 5 to 10 mph. Chance of rain 60%.

  • Tuesday

    Showers early then scattered thunderstorms developing later in the day. High 64F. Winds W at 5 to 10 mph. Chance of rain 50%.

  • Tuesday Night

    Cloudy with a few showers. Low 42F. Winds WNW at 5 to 10 mph. Chance of rain 40%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: CWS - Orion, Hillsboro, OR

Updated: 6:02 AM PDT

Temperature: 42.4 °F Dew Point: 40 °F Humidity: 89% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Columbia Weather Systems, Hillsboro, OR

Updated: 6:06 AM PDT

Temperature: 41.9 °F Dew Point: 40 °F Humidity: 92% Wind: SSW at 1.2 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Northeast Meadow Lane, Hillsboro, OR

Updated: 6:05 AM PDT

Temperature: 43.3 °F Dew Point: 39 °F Humidity: 85% Wind: North at - Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Intel Ronler Acres, Hillsboro, OR, Hillsboro, OR

Updated: 6:05 AM PDT

Temperature: 47.5 °F Dew Point: 43 °F Humidity: 83% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 6:04 AM PDT

Temperature: 43.5 °F Dew Point: 36 °F Humidity: 76% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 5:54 AM PDT

Temperature: 40.3 °F Dew Point: 40 °F Humidity: 97% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Bentley Orchards, Hillsboro, OR

Updated: 6:01 AM PDT

Temperature: 41.5 °F Dew Point: 40 °F Humidity: 94% Wind: Calm Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Connell Avenue, Hillsboro, OR

Updated: 6:05 AM PDT

Temperature: 43.7 °F Dew Point: 39 °F Humidity: 83% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Turner Creek II, Hillsboro, OR

Updated: 6:06 AM PDT

Temperature: 40.1 °F Dew Point: 40 °F Humidity: 99% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Lely Park, Hillsboro, OR

Updated: 6:04 AM PDT

Temperature: 43.4 °F Dew Point: 38 °F Humidity: 81% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Northwest Sheffield Avenue, Hillsboro, OR

Updated: 6:05 AM PDT

Temperature: 42.6 °F Dew Point: 40 °F Humidity: 91% Wind: North at - Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Near Century High School, Hillsboro, OR

Updated: 6:03 AM PDT

Temperature: 43.0 °F Dew Point: 37 °F Humidity: 82% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Edwards Meadows, Hillsboro, OR

Updated: 6:06 AM PDT

Temperature: 39.9 °F Dew Point: 38 °F Humidity: 92% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Tanasbourne, Hillsboro, OR

Updated: 6:06 AM PDT

Temperature: 43.2 °F Dew Point: 34 °F Humidity: 69% Wind: North at - Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Baseline / Cornelius Pass, Aloha, OR

Updated: 6:06 AM PDT

Temperature: 42.7 °F Dew Point: 40 °F Humidity: 90% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Rock Creek, Portland, OR

Updated: 6:05 AM PDT

Temperature: 41.0 °F Dew Point: 35 °F Humidity: 80% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Seminole Estates, Beaverton, OR

Updated: 6:06 AM PDT

Temperature: 41.2 °F Dew Point: 36 °F Humidity: 80% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Rock Creek - Bethany Lake, Portland, OR

Updated: 6:06 AM PDT

Temperature: 43.7 °F Dew Point: 36 °F Humidity: 73% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Tualatin River Farm, Hillsboro, OR

Updated: 5:53 AM PDT

Temperature: 41.8 °F Dew Point: 40 °F Humidity: 94% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Longacre Park, Beaverton, OR

Updated: 6:06 AM PDT

Temperature: 42.3 °F Dew Point: 39 °F Humidity: 87% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Whispering Woods Area, Beaverton, OR

Updated: 6:03 AM PDT

Temperature: 38.3 °F Dew Point: 38 °F Humidity: 97% Wind: Calm Pressure: 30.17 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Intel Aloha Campus, Aloha, OR, Beaverton, OR

Updated: 6:03 AM PDT

Temperature: 45.7 °F Dew Point: 42 °F Humidity: 86% Wind: SSW at 1.0 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Councel Creek, Cornelius, OR

Updated: 6:06 AM PDT

Temperature: 45.3 °F Dew Point: 41 °F Humidity: 86% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Somerset Meadows Park, Beaverton, OR

Updated: 6:06 AM PDT

Temperature: 42.6 °F Dew Point: 40 °F Humidity: 90% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: 209th / Parker Court, Aloha, OR

Updated: 6:05 AM PDT

Temperature: 41.8 °F Dew Point: -11 °F Humidity: - Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: APRSWXNET, Portland, OR

Updated: 5:28 AM PDT

Temperature: 45 °F Dew Point: 39 °F Humidity: 78% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Cornelius, CORNELIUS, OR

Updated: 6:06 AM PDT

Temperature: 43.4 °F Dew Point: 41 °F Humidity: 90% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Northwest Briarwood Drive, Portland, OR

Updated: 6:05 AM PDT

Temperature: 42.6 °F Dew Point: 40 °F Humidity: 92% Wind: North at - Pressure: 30.22 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: East of Cornelius Grade School, Cornelius, OR

Updated: 5:55 AM PDT

Temperature: 43.3 °F Dew Point: 40 °F Humidity: 88% Wind: West at 2.7 mph Pressure: 30.12 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Helvetia, Hillsboro, OR

Updated: 6:06 AM PDT

Temperature: 45.3 °F Dew Point: 42 °F Humidity: 89% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Cooper Mountain - Aloha North, Aloha, OR

Updated: 6:05 AM PDT

Temperature: 42.4 °F Dew Point: 35 °F Humidity: 76% Wind: North at - Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Beaver Acres, Huber, OR

Updated: 6:06 AM PDT

Temperature: 42.1 °F Dew Point: 42 °F Humidity: 99% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Helvetia Oregon, Hillsboro, OR

Updated: 6:04 AM PDT

Temperature: 43.5 °F Dew Point: 42 °F Humidity: 94% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Hwy 26 and Cornell, Beaverton, OR

Updated: 6:00 AM PDT

Temperature: 42.0 °F Dew Point: 41 °F Humidity: 95% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Bethany, Portland, OR

Updated: 5:58 AM PDT

Temperature: 46.5 °F Dew Point: 44 °F Humidity: 91% Wind: North at 2.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Farm near Meriwether Golf Course, Hillsboro, OR

Updated: 6:05 AM PDT

Temperature: 40.7 °F Dew Point: 38 °F Humidity: 91% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: APRSWXNET, Beaverton, OR

Updated: 4:56 AM PDT

Temperature: 44 °F Dew Point: 36 °F Humidity: 73% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in 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 
241 am PDT Sat Apr 18 2015 


Synopsis...high pressure will persist through Monday with 
temperatures gradually warmer each day...potentially bringing the 
warmest days so far this year. An upper trough may bring some showers 
Tuesday afternoon and evening and cooler conditions. Wednesday should 
be dry...but cloudy and cool before a series of cold fronts bring a 
chance for rain and mountain snow Thursday and Friday. 


&& 


Short term...today through Tuesday...high pressure is building over 
the Pacific northwest this morning aloft and surface...and will hold through 
Tuesday. Skies are clear early this morning...and radiation cooling 
may lead to some patchy stratus/fog around sunrise along the 
immediate coast and in the interior valleys. However...the atmosphere 
is rather dry with temperature/dew point depressions around 10 
degrees inland...and think the coast stands the best chance for some 
shallow fog. 


North-northwest winds are already observed along the coast and will remain 
through tonight as the high pressure settles across Oregon and 
Washington and a thermal trough holds over northern California. Any 
fog early this morning will quickly clear and expect temperatures to 
rise into the low to middle 70s for the interior valleys and the upper 
60s for the coast this afternoon. 


The thermal trough will extend slightly northward and offshore 
tonight allowing the inland winds to become off shore. This will 
result in drier air over Oregon and Washington tonight and a lack of 
fog/clouds. Sunday will possibly be the warmest day of the year so 
far and expect the interior valleys to warm into the upper 70s. 
The pressure pattern will change very little Sunday night and 
Monday...and expect even warmer temperatures for Monday. 


The ridge will shift inland Monday night as an upper trough 
approaches...with onshore flow bringing cooler and moister air to 
coastal regions Tuesday morning. Expect marine stratus to return to 
the coast and be deep enough to move through the coastal gaps into 
parts of the Willamette Valley. These clouds combined with a passing 
trough will result in cooler temperature Tuesday afternoon with 
inland highs back in the 60s and coastal highs in the 50s. 


The upper trough may help bring some monsoonal moisture from 
California and Arizona northward for some afternoon showers over the 
Oregon and Washington Cascades Tuesday afternoon and possibly some 
thunderstorms along the Cascade crest. However...the best chance for 
thunderstorms will be east of the Cascades. Tj 
&& 


Long term...Tuesday night through Friday...an upper trough will bring 
a chance of showers...mainly to the Cascades Tuesday night. Wednesday 
will be cloudy and cool behind the trough. A couple ofcold fronts 
will increase rain and mountain snow chances for Thursday and Friday. 
Tj 
&& 


Aviation...high pressure with dry stable flow aloft. At 2 am...ceilings 
of 800 to 1200 feet were forming along the coast. These will break 
up between 15z and 18z as gusty north winds increase along the coast. 


Kpdx and approaches...VFR under dry stable air mass. No adverse weather 
impacts through tonight. Rockey. 
&& 


Marine...high pressure over the region...with thermal low pressure over 
northwest calif into far SW Oregon. This will maintain gusty north winds. 
While the strongest winds on S Oregon coastal waters...should 
still have gusts 20 to 25 knots north of Cascade Head...and 25 to 30 knots 
to S. Also...winds will be strongest during the afternoon and 
evening hours...slackening late at night. Seas generally 8 to 10 
feet today and tonight...but will ease back a tad...with 6 to 9 feet 
through Monday. 


Longer range shows high pressure over the NE Pacific strengthening Tuesday and 
Wednesday...with northwest winds gusting 20 to 30 knots at times. 
&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds through sun am on all waters. 


Small Craft Advisory for rough Columbia River bar 
conditions until 7 am today...and again 4 to 8 PM today. && 
$$ 


Interact with US via social media 
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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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