Hillsboro, Oregon Weather Conditions

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Current Conditions

  • 40°
  • Clear
  • Wind: Calm
  • Humidity: 93%
  • Visibility: 10.0 miles
  • Dew Point: 38°
  • Pressure: 30.24 in. 0

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Next 12 Hours

10  pm
1  am
4  am
7  am
10  am
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
37°
43°
39°
37°
39°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Fog
  • High: 52 °
  • Low: 37 °
  • Fog
  • Sunday
  • Rain
  • High: 46 °
  • Low: 45 °
  • Rain
  • Monday
  • Rain
  • High: 52 °
  • Low: 41 °
  • Rain
  • Tuesday
  • Chance of Rain
  • High: 52 °
  • Low: 36 °
  • Chance of Rain
  • Wednesday
  • Partly Cloudy
  • High: 52 °
  • Low: 43 °
  • Partly Cloudy

Forecast for Hillsboro, Oregon

Updated: 7:00 PM PST on January 30, 2015

  • Friday

    Partly cloudy. Fog early. High of 55F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy in the evening, then overcast. Fog overnight. Low of 34F. Winds less than 5 mph.

  • Saturday

    Overcast in the morning, then partly cloudy. Fog early. High of 52F. Winds less than 5 mph.

  • Saturday Night

    Mostly cloudy with rain after midnight. Fog overnight. Low of 37F. Winds less than 5 mph. Chance of rain 70%.

  • Sunday

    Overcast with rain. Fog early. High of 46F. Winds from the South at 10 to 15 mph. Chance of rain 90% with rainfall amounts near 0.2 in. possible.

  • Sunday Night

    Overcast with rain. Low of 45F. Winds from the South at 5 to 15 mph. Chance of rain 80%.

  • Monday

    Overcast with rain. High of 52F. Winds from the South at 10 to 15 mph. Chance of rain 90% with rainfall amounts near 0.2 in. possible.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 41F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy with a chance of rain in the afternoon. Fog early. High of 52F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Clear. Low of 36F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. Fog early. High of 52F. 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 50F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear with a chance of rain. Fog overnight. Low of 46F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.4 in. possible.

  • Friday

    Partly cloudy with a chance of rain. Fog early. High of 59F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Friday Night

    Clear with a chance of rain. Fog overnight. Low of 45F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Saturday

    Clear. Fog early. High of 57F. Winds from the South at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 52F. Winds from the South at 5 to 10 mph.

  • Sunday

    Clear. High of 59F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 48F. Winds from the SSW at 5 to 10 mph.

  • Monday

    Clear. High of 57F. Winds less than 5 mph.

  • Monday Night

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

  • Tuesday

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Northeast Meadow Lane, Hillsboro, OR

Updated: 9:25 PM PST

Temperature: 39.6 °F Dew Point: 38 °F Humidity: 93% Wind: North at - Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 9:25 PM PST

Temperature: 40.8 °F Dew Point: 35 °F Humidity: 81% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 9:12 PM PST

Temperature: 35.4 °F Dew Point: 35 °F Humidity: 97% Wind: Calm Pressure: 30.06 in Hourly Precipitation: - Windchill: 35 °F Graphs

Location: Bentley Orchards, Hillsboro, OR

Updated: 9:23 PM PST

Temperature: 37.9 °F Dew Point: 34 °F Humidity: 85% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: APRSWXNET Hillsboro OR US, Hillsboro, OR

Updated: 9:04 PM PST

Temperature: 42 °F Dew Point: 35 °F Humidity: 75% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Connell Avenue, Hillsboro, OR

Updated: 9:26 PM PST

Temperature: 40.6 °F Dew Point: 34 °F Humidity: 76% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

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

Updated: 9:15 PM PST

Temperature: 43.6 °F Dew Point: 39 °F Humidity: 84% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Turner Creek II, Hillsboro, OR

Updated: 9:26 PM PST

Temperature: 37.2 °F Dew Point: 37 °F Humidity: 99% Wind: ESE at 1.7 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Edwards Meadows, Hillsboro, OR

Updated: 9:20 PM PST

Temperature: 36.7 °F Dew Point: 35 °F Humidity: 93% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Lely Park, Hillsboro, OR

Updated: 9:22 PM PST

Temperature: 40.5 °F Dew Point: 35 °F Humidity: 81% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Near Century High School, Hillsboro, OR

Updated: 9:21 PM PST

Temperature: 39.6 °F Dew Point: 34 °F Humidity: 80% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Northwest Sheffield Avenue, Hillsboro, OR

Updated: 9:25 PM PST

Temperature: 39.6 °F Dew Point: 38 °F Humidity: 94% Wind: North at - Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Baseline / Cornelius Pass, Aloha, OR

Updated: 9:26 PM PST

Temperature: 40.2 °F Dew Point: 36 °F Humidity: 86% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Tualatin River Farm, Hillsboro, OR

Updated: 9:11 PM PST

Temperature: 39.3 °F Dew Point: 38 °F Humidity: 94% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Rock Creek, Portland, OR

Updated: 9:24 PM PST

Temperature: 37.2 °F Dew Point: 34 °F Humidity: 87% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Seminole Estates, Beaverton, OR

Updated: 9:26 PM PST

Temperature: 38.3 °F Dew Point: 33 °F Humidity: 81% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Councel Creek, Cornelius, OR

Updated: 9:26 PM PST

Temperature: 38.8 °F Dew Point: 36 °F Humidity: 91% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Longacre Park, Beaverton, OR

Updated: 9:25 PM PST

Temperature: 38.8 °F Dew Point: 35 °F Humidity: 86% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Whispering Woods Area, Beaverton, OR

Updated: 9:26 PM PST

Temperature: 35.2 °F Dew Point: 33 °F Humidity: 93% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Windchill: 35 °F Graphs

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

Updated: 9:20 PM PST

Temperature: 42.4 °F Dew Point: 36 °F Humidity: 79% Wind: ENE at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Cornelius, CORNELIUS, OR

Updated: 9:26 PM PST

Temperature: 37.5 °F Dew Point: 36 °F Humidity: 94% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: East of Cornelius Grade School, Cornelius, OR

Updated: 9:15 PM PST

Temperature: 39.0 °F Dew Point: 38 °F Humidity: 95% Wind: SSE at 1.7 mph Pressure: 30.07 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: 209th / Parker Court, Aloha, OR

Updated: 5:39 PM PST

Temperature: 50.0 °F Dew Point: 28 °F Humidity: 42% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Somerset Meadows Park, Beaverton, OR

Updated: 9:26 PM PST

Temperature: 38.8 °F Dew Point: 36 °F Humidity: 91% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Cooper Mountain - Aloha North, Aloha, OR

Updated: 9:22 PM PST

Temperature: 39.7 °F Dew Point: 36 °F Humidity: 87% Wind: North at - Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: APRSWXNET Beaverton OR US, Portland, OR

Updated: 9:02 PM PST

Temperature: 39 °F Dew Point: 36 °F Humidity: 89% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Farm near Meriwether Golf Course, Hillsboro, OR

Updated: 9:26 PM PST

Temperature: 38.6 °F Dew Point: 36 °F Humidity: 92% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: at Harleman Park, Cornelius, OR

Updated: 9:18 PM PST

Temperature: 37.4 °F Dew Point: 34 °F Humidity: 88% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: APRSWXNET Cornelius OR US, Cornelius, OR

Updated: 8:52 PM PST

Temperature: 38 °F Dew Point: 35 °F Humidity: 88% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Beaver Acres, Huber, OR

Updated: 9:26 PM PST

Temperature: 38.1 °F Dew Point: 35 °F Humidity: 90% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: APRSWXNET Beaverton OR US, Portland, OR

Updated: 8:58 PM PST

Temperature: 41 °F Dew Point: 34 °F Humidity: 75% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: APRSWXNET Hillsboro OR US, Hillsboro, OR

Updated: 8:57 PM PST

Temperature: 39 °F Dew Point: 37 °F Humidity: 92% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: APRSWXNET Aloha OR US, Beaverton, OR

Updated: 8:26 PM PST

Temperature: 42 °F Dew Point: 34 °F Humidity: 73% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Helvetia, Hillsboro, OR

Updated: 9:26 PM PST

Temperature: 39.4 °F Dew Point: 37 °F Humidity: 91% Wind: NE at 2.0 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

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

Updated: 9:26 PM PST

Temperature: 44.1 °F Dew Point: 39 °F Humidity: 82% Wind: SSE at 5.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
849 PM PST Friday Jan 30 2015 


Synopsis...an upper ridge and offshore flow will produce relatively 
mild temperatures for January...with areas of valley fog and east 
winds near the mouth of the Columbia River gorge through Saturday 
night. Expect a decent shot of rain in southwest Washington and 
northwest Oregon Sunday into Sunday evening as a Pacific front moves 
through. Another good shot of rain appears likely on Monday as 
another Pacific low and front moves by. Some more rain is possible 
middle week from a warm front though confidence in the details and 
timing is low. A series of wetter cold fronts is likely late next 
week into next weekend. Significant snows at Cascade Pass level 
appear unlikely during the next week. 
&& 


Update...only subtle fussing with the forecast tonight as we start 
out with somewhat similar conditions to last night. As mentioned 
below...easterly gradients will be a little lighter than last night 
while northerly gradients along the Willamette Valley are fairly 
similar. Have nudged tonight's fog/stratus coverage toward what was 
observed earlier today but allowed for some fog/stratus coverage 
development across the remainder of the I-5 corridor and the Central 
Valley. Stronger subsidence has strengthened the inversions by a few 
degrees so upped midslope temperatures correspondingly. Also seeing 
drier air overall under the subsidence. For example the freezing 
level is near 9000 feet with a dew Point of -56 and a corresponding 
relative humidity of 1 (one) percent. Fortunately...lower levels are still in much 
better shape but do expect the low level inversion will result in 
some summertime like temperature and humidity profiles through 
Saturday. Be careful tomorrow with burning slash and yard debris if 
above the inversions and out of the fog/stratus. Fire may get more 
active than one might expect for this time of year. Updates will be 
available shortly. 
/Jbonk 


&& 


Previous disc... /issued 221 PM PST Friday Jan 30 2015/ 


Short term...tonight through Monday...the pattern of fog and low 
clouds this afternoon is pretty much what we saw Thursday afternoon 
just before it all cleared...and expect it to mostly clear again this 
afternoon and early evening. There was a bit of a lull in the 
gradient through The Gorge this morning but the gradient is back up 
to 6.3 mb early this afternoon. The nam12 model says the gradient is 
going to weaken a bit again tonight and early Saturday...and if it 
does...the fog coverage tonight and Saturday morning would be a bit 
more extensive than this morning...and have trended the grids that 
way. Would also expect a bit slower clearing Saturday afternoon. But 
confidence in that is only moderate at best as the low clouds in the 
Columbia Basin remain solid and this would suggest the winds might 
not change too much. 


The gradient through The Gorge increases late Saturday and Saturday 
night as the high pressure east of the Cascades strengthens some due 
to the passage of a weak system well to our north and east. This may 
affect the fog formation some near Portland and Vancouver...but the 
rest of the valley areas should see more fog again overnight Saturday 
night. 


The models are showing the next frontal system approaching the north 
coastal areas late Saturday night and moving through southwest 
Washington and northwest Oregon during the day Sunday and early 
Sunday evening. Sped up the arrival of the precipitation up a touch 
and raised probability of precipitation previously in the morning update. We should see a 
decent shot of quantitative precipitation forecast from this system...with the higher terrain seeing 
a half inch or more and the valleys maybe a quarter of an inch. A bit 
wetter system is expected Monday...with amounts a bit higher than on 
Sunday...maybe one and a half to two times higher. May see some 
breezes on the coast Monday as a 1005 mb surface low heads toward 
Vancouver Island. Unfortunately...snow levels remain rather high with 
these systems...with any snow in the higher Cascades in the north 
part of our forecast area. Tolleson 


Long term...Monday night through Friday...in the wake of the system 
that moves through Monday...the models develop a warm front and 
attempt to eventually lift it north through the Pacific northwest in 
the middle week period. Unfortunately...the models are having a tough 
time settling on when and where it will form and how wet it will be. 
It will likely form somewhere over southwest Oregon or extreme 
northern California...then lift north around Wednesday. For now have 
broad brushed the probability of precipitation a bit due to the timing and intensity 
problems. The next rather mature and decently strong occluded front 
comes in around Thursday...followed by a series of rather wet fronts 
late next week into the weekend. The general trend next week is 
toward a wetter more active pattern. At this point...other than a 
couple of brief dips...snow levels remain rather high and these 
systems will not likely add much if anything to the deficient snow 
pack in the Cascades. Tolleson 
&& 


Aviation...fog has developed north of kkls and will continue to 
spread south overnight. With light winds and a moist lower 
atmosphere forecasted for the Interior Valley...expect to see 
widespread fog and low stratus redevelop and persist through 
Saturday morning. Periods of IFR to LIFR ceilings and visible are possible 
late tonight through Saturday morning. VFR conditions expected to 
return by Saturday afternoon for the Interior Valley. The 
exception will continue to be kttd...which will see VFR conditions 
under easterly winds through Saturday evening. Light offshore 
flow along the coast could also bring a mixture of LIFR to MVFR 
ceilings and visible early Saturday morning with conditions becoming VFR 
in the afternoon. 


Kpdx and approaches...VFR conditions will give way to IFR ceilings and 
visible late tonight. Expect fog and low stratus to return between 
07-10z Saturday and persist through around 19z Saturday. Brief 
periods of LIFR ceilings and visible are possible early Saturday morning. 
VFR conditions return Saturday afternoon as east winds begin to 
increase at the terminal. /64 


&& 


Marine...other than a brief period of isolated Small Craft 
Advisory gusts...things continue to progress as planned. As 
such...no changes were made with the evening update. High pressure 
will remain over the region through Sat. Seas will continue to be 
around 5 to 6 feet with wind gusts to 20 knots possible. /64 


Previous discussion follows...will see pattern change next 
week...as a series of fronts push into the region. Each will be 
progressively stronger...with winds 20 to 25 knots at times later sun 
and Sun night...with gusts 30 to 35 knots likely on Monday as next front 
pushes into the region. If pattern holds...good chance of 
southerly gales next Thursday and Friday...with seas building into the 
middle and upper teens. Rockey. 


&& 


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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