Hillsboro, Oregon Weather Conditions

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Current Conditions

  • 46°
  • Overcast
  • Wind: South 12 mph
  • Humidity: 86%
  • Visibility: 10.0 miles
  • Dew Point: 42°
  • Pressure: 29.94 in. +
  • Heat Index: 41

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Rain
  • High: 55 °
  • Low: 48 °
  • Rain
  • Thursday
  • Rain
  • High: 55 °
  • Low: 39 °
  • Rain
  • Friday
  • Rain Showers
  • High: 57 °
  • Low: 37 °
  • Rain Showers
  • Saturday
  • Chance of Rain
  • High: 55 °
  • Low: 41 °
  • Chance of Rain
  • Sunday
  • Chance of Rain
  • High: 54 °
  • Low: 43 °
  • Chance of Rain

Forecast for Hillsboro, Oregon

Updated: 8:00 PM PDT on April 22, 2014

  • Wednesday

    Overcast with rain. Fog early. High of 55F. Winds from the South at 10 to 15 mph. Chance of rain 100% with rainfall amounts near 0.2 in. possible.

  • Wednesday Night

    Overcast with rain. Fog overnight. Low of 48F. Breezy. Winds from the South at 10 to 20 mph. Chance of rain 90% with rainfall amounts near 0.6 in. possible.

  • Thursday

    Overcast with rain, then rain showers in the afternoon. High of 55F. Breezy. Winds from the SSW at 10 to 20 mph. Chance of rain 90%.

  • Thursday Night

    Overcast with rain showers. Low of 39F. Winds from the South at 5 to 15 mph. Chance of rain 60%.

  • Friday

    Mostly cloudy with rain showers. High of 57F. Winds from the South at 5 to 10 mph shifting to the WSW in the afternoon. Chance of rain 60%.

  • Friday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 37F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday

    Overcast with a chance of rain. High of 55F. Winds from the South at 5 to 10 mph. Chance of rain 50%.

  • Saturday Night

    Overcast with a chance of rain in the evening, then mostly cloudy. Fog overnight. Low of 41F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Overcast with a chance of rain in the morning, then partly cloudy with a chance of rain. High of 54F. Winds less than 5 mph. Chance of rain 50%.

  • Sunday Night

    Mostly cloudy 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. Fog early. High of 61F. Winds from the SSE at 5 to 15 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Monday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 45F. Winds less than 5 mph. Chance of rain 30%.

  • Tuesday

    Partly cloudy. High of 68F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 46F. Winds from the North at 5 to 10 mph.

  • Wednesday

    Clear. High of 68F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Fog overnight. Low of 45F. Winds less than 5 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. Fog early. High of 61F. Winds less than 5 mph. Chance of rain 30%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 41F. Winds less than 5 mph. Chance of rain 30%.

  • Friday

    Partly cloudy. High of 61F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Low of 39F. Winds less than 5 mph.

  • Saturday

    Clear. High of 64F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: CWS - Orion, Hillsboro, OR

Updated: 12:04 AM PDT

Temperature: 45.8 °F Dew Point: 43 °F Humidity: 88% Wind: SSE at 7.6 mph Pressure: 29.92 in Hourly Precipitation: 0.01 in Windchill: 42 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 12:04 AM PDT

Temperature: 46.8 °F Dew Point: 42 °F Humidity: 85% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Connell Avenue, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 46.2 °F Dew Point: 41 °F Humidity: 83% Wind: North at 4.5 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Wendy's Weather, Hillsboro, OR

Updated: 12:05 AM PDT

Temperature: 46.8 °F Dew Point: 44 °F Humidity: 91% Wind: West at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Edwards Meadows, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 45.3 °F Dew Point: 43 °F Humidity: 93% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Near Century High School, Hillsboro, OR

Updated: 12:05 AM PDT

Temperature: 46.6 °F Dew Point: 43 °F Humidity: 89% Wind: WSW at 3.6 mph Pressure: 29.71 in Hourly Precipitation: 0.03 in Windchill: 45 °F Graphs

Location: Baseline / Cornelius Pass, Aloha, OR

Updated: 12:07 AM PDT

Temperature: 46.3 °F Dew Point: 44 °F Humidity: 91% Wind: South at 14.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Rock Creek, Portland, OR

Updated: 12:05 AM PDT

Temperature: 46.7 °F Dew Point: 42 °F Humidity: 84% Wind: SW at 2.7 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Seminole Estates, Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 45.9 °F Dew Point: 41 °F Humidity: 84% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.01 in Windchill: 46 °F Graphs

Location: 185th & Walker Road, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 46.2 °F Dew Point: 45 °F Humidity: 96% Wind: Calm Pressure: 17.72 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Longacre Park, Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 45.7 °F Dew Point: 45 °F Humidity: 96% Wind: South at 1.1 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Whispering Woods Area, Beaverton, OR

Updated: 12:02 AM PDT

Temperature: 45.5 °F Dew Point: 43 °F Humidity: 92% Wind: East at 8.9 mph Pressure: 29.81 in Hourly Precipitation: - Windchill: 41 °F Graphs

Location: Cornelius, CORNELIUS, OR

Updated: 12:07 AM PDT

Temperature: 45.7 °F Dew Point: 44 °F Humidity: 92% Wind: South at 1.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: 209th / Parker Court, Aloha, OR

Updated: 12:07 AM PDT

Temperature: 45.7 °F Dew Point: - Humidity: - Wind: SE at 3.1 mph Pressure: 29.92 in Hourly Precipitation: 0.02 in Windchill: 45 °F Graphs

Location: Somerset Meadows Park, Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 45.1 °F Dew Point: 43 °F Humidity: 92% Wind: South at 5.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Farm near Meriwether Golf Course, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 45.5 °F Dew Point: 43 °F Humidity: 92% Wind: South at 3.0 mph Pressure: 29.92 in Hourly Precipitation: 0.01 in Windchill: 46 °F Graphs

Location: at Harleman Park, Cornelius, OR

Updated: 12:03 AM PDT

Temperature: 45.9 °F Dew Point: 41 °F Humidity: 84% Wind: SSE at 7.8 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: APRSWXNET Aloha OR US, Beaverton, OR

Updated: 10:56 PM PDT

Temperature: 47 °F Dew Point: 41 °F Humidity: 79% Wind: South at 5 mph Pressure: 29.92 in Hourly Precipitation: 0.02 in Windchill: 45 °F Graphs

Location: Helvetia, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 46.0 °F Dew Point: 44 °F Humidity: 91% Wind: South at 3.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Panorama Point (Washington Cty), Cornelius, OR

Updated: 12:07 AM PDT

Temperature: 44.7 °F Dew Point: 43 °F Humidity: 94% Wind: SE at 4.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: 209th & Farmington Aloha, OR

Updated: 11:59 PM PDT

Temperature: 45.6 °F Dew Point: 44 °F Humidity: 94% Wind: NW at 4.0 mph Pressure: 29.93 in Hourly Precipitation: 0.02 in Windchill: 44 °F Graphs

Location: Aloha, OR

Updated: 12:07 AM PDT

Temperature: 45.1 °F Dew Point: 45 °F Humidity: 99% Wind: NNE at 4.5 mph Pressure: 29.55 in Hourly Precipitation: 0.01 in Windchill: 43 °F Graphs

Location: Hwy 26 and Cornell, Beaverton, OR

Updated: 12:00 AM PDT

Temperature: 46.7 °F Dew Point: 40 °F Humidity: 78% Wind: SSE at 4.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Helvetia Oregon, Hillsboro, OR

Updated: 12:07 AM PDT

Temperature: 44.6 °F Dew Point: 42 °F Humidity: 89% Wind: Calm Pressure: 29.46 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Mason Hill, North Plains, OR

Updated: 11:57 PM PDT

Temperature: 46.4 °F Dew Point: 37 °F Humidity: 70% Wind: SSW at 4.4 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Bethany, Portland, OR

Updated: 12:02 AM PDT

Temperature: 46.1 °F Dew Point: 45 °F Humidity: 94% Wind: South at 9.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: South Hills, Cornelius, OR

Updated: 12:07 AM PDT

Temperature: 46.1 °F Dew Point: 44 °F Humidity: 93% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.01 in Windchill: 46 °F Graphs

Location: Forest Grove Honda Across From Ace Hardware, Forest Grove, OR

Updated: 12:00 AM PDT

Temperature: 45.1 °F Dew Point: 33 °F Humidity: 63% Wind: ESE at 1.0 mph Pressure: 29.85 in Hourly Precipitation: 0.01 in Windchill: 45 °F Graphs

Location: MesoWest FOREST GROVE OR US AGRIMET, Glenwood, OR

Updated: 11:00 PM PDT

Temperature: 46 °F Dew Point: 46 °F Humidity: 100% Wind: South at 6 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Conifer Ridge, Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 44.3 °F Dew Point: 42 °F Humidity: 90% Wind: West at 4.5 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: 160th and Westwind Dr., Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 45.7 °F Dew Point: 42 °F Humidity: 88% Wind: SSW at 8.5 mph Pressure: 29.74 in Hourly Precipitation: 0.02 in Windchill: 41 °F Graphs

Location: West Beaverton, Beaverton, OR

Updated: 12:05 AM PDT

Temperature: 46.2 °F Dew Point: 42 °F Humidity: 84% Wind: SSW at 6.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: 170th and Sugar Plum Ln, Beaverton, OR

Updated: 12:07 AM PDT

Temperature: 47.7 °F Dew Point: 43 °F Humidity: 85% Wind: WSW at 1.3 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Summit at Cooper Mountain, Beaverton, OR

Updated: 12:01 AM PDT

Temperature: 44.1 °F Dew Point: 42 °F Humidity: 92% Wind: NE at 2.0 mph Pressure: 29.91 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 or 
831 PM PDT Tuesday Apr 22 2014 


Synopsis...more wet weather ahead for this week. Showers will 
change to rain tonight as a warm front approaches the coast...keeping 
a threat for rain going into Wednesday. There will be snow 
down to the Cascade Pass levels tonight and Wednesday.A more 
robust system will bring more rain and windy conditions to the coast 
later Wednesday into Thursday. Another cool showery trough is expected for the 
latter half of the week. 


&& 


Update...showers continue this evening as an upper level trough 
approaches the Washington coast. The trough axis will move onshore 
around midnight tonight and move east of the Cascades early Wednesday 
morning. Satellite imagery shows the next Pacific storm approaching 
with the associated low just about to cross 140w. This system will 
produce more Rain...Mountain snow and breezy coastal winds Wednesday 
and Wednesday night. Made no changes to the evening forecast and 
previous discussion follows. 


Previous discussion...a cool upper trough over the region will slowly 
move east tonight. Meanwhile daytime heating and a somewhat unstable 
air mass increased shower activity and intensity. There were a few 
reports of pea sized hail on the coast and northern interior zones. 
Convective parameters are marginal for thunderstorms...but current 
radar showing some small cells with 50dbz echoes...so will add a 
slight chance of thunderstorms west of the Cascades for a few hours 
this evening. 


Deeper moisture moves in later tonight and Wednesday morning as a low 
level warm air advection pattern sets up with the approaching ridge 
aloft. Best moist isentropic lift is found between 285k and 290k 
isentropic surfaces from late tonight until Wednesday evening. This 
coupled with rather generous quantitative precipitation forecast forecasts in all the models gives 
high confidence for an extended period of rain Wednesday. Deep moisture 
remains in place until Thursday morning...as lifting mechanism switches 
to dynamics generated by a cold front and accompanying shortwave Thursday 
morning. This will keep probability of precipitation categorical through Thursday. Models show a 
fairly deep low approaching Vancouver Island Thursday morning. Models 
vary some on the position but not by much. The lowest central 
pressure ranges from 989mb to 995mb. Either way the front associated 
with the low will bring fairly windy conditions to the coast...and 
it could be breezy inland as well on Thursday. Showers likely behind the 
front Thursday afternoon as the next cold upper trough digs in towards 
the coast. 


Snow levels will remain below Cascade passes into Wednesday...possibly into 
Wednesday evening...before warmer air pushes in Wednesday night and early Thursday. 
Orographics are not great like a winter time storm...but model quantitative precipitation forecast 
combined with moderate orographics should be enough to accumulate 
about 6 inches of new snow above 3500 feet for tonight and Wednesday. 
Models generally focus of the higher quantitative precipitation forecast amounts north of Mount 
Jefferson into the South Washington Cascades where a Snow Advisory 
will be in effect for tonight and Wednesday. 


Long term...no changes. Previous discussion follows...Friday night 
through Tuesday...expect cool and showery conditions for most of the 
long term forecast period. Post frontal showers lingering Thursday night and 
Friday as the upper level trough and associated instability pass over the 
region. There may be a bit of a break to start the weekend...but 
another front is push onshore late Sat or sun which should bring 
another round of more organized precipitation. The latest model trend 
is now toward building an upper level ridge over the Pacific northwest to start 
next week. It is still quite a way out...but recent trends in models 
give higher confidence early next week will be warmer and drier. 


&& 


Aviation...mostly VFR conditions tonight as a more organized 
band/front moves onshore. Still may see some small hail in heavier 
showers and as steadier rain increases tonight...MVFR conditions 
or even locally lower conditions are possible. Moisture is 
expected to continue spreading onshore into Wednesday as 
subsequent waves of moisture move through...and occasional showers 
will continue...possibly producing MVFR conditions at times. 


Kpdx and approaches...mainly VFR conditions prevail as a more 
organized band or a front of showers move through this evening. 
MVFR conditions are possible with ceilings around 2500-3500 feet. A 
mixture of VFR and MVFR continues Wednesday. Pt/27 


&& 


Marine...south winds with gusts near 25 knots will continue through 
early Wednesday as a 1000 mb low out near 48n 130w moves toward 
Vancouver Island then slowly weakens and stalls near the coast. A 
trailing disturbance will bring some low end gale force winds with 
gusts to 35 knots later Wednesday morning into early Wednesday evening. 
Then a stronger low will deepen to 993 mb as it heads toward 
Vancouver Island Wednesday night and Thursday for more gale force 
winds before the low weakens along the coast again later Thursday 
into Friday. Another rather strong Pacific front is expected late 
Saturday and Saturday night and will produce high end Small Craft 
Advisory or possibly gale force winds again. 


Seas will hover around 10 to 12 feet starting tonight with the 
first low...and continue through late this week. Seas may possibly 
even climb another foot or two with the systems Wednesday and 
Thursday. Pt 


&& 


Pqr watches/warnings/advisories... 
or...Winter Weather Advisory until 5 PM PDT Wednesday for northern 
Oregon Cascades. 


Washington...Winter Weather Advisory until 5 PM PDT Wednesday for South 
Washington Cascades. 


Pz...Small Craft Advisory for winds until 10 am PDT Wednesday for 
coastal waters from Cape Shoalwater to Florence out 60 nm. 


Gale Warning from 10 am Wednesday to 11 am PDT Thursday for 
coastal waters from Cape Shoalwater to Florence out 60 nm. 


Small Craft Advisory for hazardous seas until 10 am PDT 
Wednesday for coastal waters from Cape Shoalwater to 
Florence out 60 nm. 


Small Craft Advisory for rough Columbia River bar until 6 PM 
PDT Wednesday. 


&& 


$$ 


More weather information online at... 
http://weather.Gov/Portland 


Interact with US via social media 
www.Facebook.Com/US.Nationalweatherservice.Portland.Gov 
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.. 






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