Hillsboro, Oregon Weather Conditions

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Current Conditions

  • 55°
  • Overcast
  • Wind: North 5 mph
  • Humidity: 100%
  • Visibility: 9.0 miles
  • Dew Point: 55°
  • Pressure: 29.85 in. -

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Rain
  • High: 63 °
  • Low: 52 °
  • Rain
  • Friday
  • Chance of a Thunderstorm
  • High: 57 °
  • Low: 41 °
  • Chance of T-Storms
  • Saturday
  • Chance of Rain
  • High: 55 °
  • Low: 45 °
  • Chance of Rain
  • Sunday
  • Chance of Rain
  • High: 54 °
  • Low: 45 °
  • Chance of Rain
  • Monday
  • Chance of Rain
  • High: 54 °
  • Low: 52 °
  • Chance of Rain

Forecast for Hillsboro, Oregon

Updated: 8:00 AM PDT on October 30, 2014

  • Thursday

    Overcast with rain. High of 63F. Winds from the SE at 5 to 10 mph. Chance of rain 100% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Overcast with rain. Fog overnight. Low of 52F. Winds less than 5 mph. Chance of rain 100% with rainfall amounts near 0.5 in. possible.

  • Friday

    Overcast with a chance of a thunderstorm and rain, then a chance of a thunderstorm and rain showers in the afternoon. High of 57F. Winds from the South at 5 to 10 mph. Chance of rain 100%.

  • Friday Night

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

  • Saturday

    Partly cloudy with a chance of rain. Fog early. High of 55F. Winds less than 5 mph. Chance of rain 30%.

  • Saturday Night

    Partly cloudy. Low of 45F. Winds less than 5 mph.

  • Sunday

    Overcast with a chance of rain. High of 54F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    Overcast with a chance of rain. Low of 45F. Winds less than 5 mph. Chance of rain 20%.

  • Monday

    Overcast with a chance of rain. High of 54F. Winds from the SSE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Monday Night

    Overcast with a chance of rain. Low of 52F. Winds from the SSE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Overcast with a chance of rain. High of 57F. Winds less than 5 mph. Chance of rain 60%.

  • Tuesday Night

    Mostly cloudy. Fog overnight. Low of 46F. Winds less than 5 mph.

  • Wednesday

    Overcast with a chance of rain. Fog early. High of 63F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Overcast with a chance of rain. Fog overnight. Low of 50F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy with a chance of rain. Fog early. High of 61F. Winds from the South at 5 to 15 mph shifting to the WNW in the afternoon. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Thursday Night

    Partly cloudy. Low of 46F. Winds less than 5 mph.

  • Friday

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

  • Friday Night

    Partly cloudy. Low of 43F. Winds less than 5 mph.

  • Saturday

    Partly cloudy with a chance of rain. Fog early. High of 54F. Winds less than 5 mph. Chance of rain 30%.

  • Saturday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 45F. Winds less than 5 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Sunday

    Partly cloudy with a chance of a thunderstorm. High of 52F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: CWS - Orion, Hillsboro, OR

Updated: 10:25 AM PDT

Temperature: 56.1 °F Dew Point: 54 °F Humidity: 93% Wind: South at 1.1 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Jackson School, Hillsboro, OR

Updated: 10:23 AM PDT

Temperature: 55.9 °F Dew Point: 54 °F Humidity: 94% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Connell Avenue, Hillsboro, OR

Updated: 10:27 AM PDT

Temperature: 56.7 °F Dew Point: 54 °F Humidity: 89% Wind: West at 1.6 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:16 AM PDT

Temperature: 58.8 °F Dew Point: 56 °F Humidity: 90% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Edwards Meadows, Hillsboro, OR

Updated: 10:25 AM PDT

Temperature: 56.6 °F Dew Point: 55 °F Humidity: 94% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Lely Park, Hillsboro, OR

Updated: 10:25 AM PDT

Temperature: 56.9 °F Dew Point: 31 °F Humidity: 38% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Near Century High School, Hillsboro, OR

Updated: 10:26 AM PDT

Temperature: 57.4 °F Dew Point: 55 °F Humidity: 96% Wind: Calm Pressure: 31.01 in Hourly Precipitation: 0.00 in Graphs

Location: Baseline / Cornelius Pass, Aloha, OR

Updated: 10:26 AM PDT

Temperature: 56.9 °F Dew Point: 56 °F Humidity: 97% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: South Hillsboro - Tualatin River, Hillsboro, OR

Updated: 10:23 AM PDT

Temperature: 56.4 °F Dew Point: 56 °F Humidity: 98% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Rock Creek, Portland, OR

Updated: 10:24 AM PDT

Temperature: 59.1 °F Dew Point: 58 °F Humidity: 95% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Graphs

Location: Seminole Estates, Beaverton, OR

Updated: 10:27 AM PDT

Temperature: 58.0 °F Dew Point: 55 °F Humidity: 91% Wind: WSW at 1.1 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Graphs

Location: Councel Creek, Cornelius, OR

Updated: 10:27 AM PDT

Temperature: 55.6 °F Dew Point: 55 °F Humidity: 97% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Longacre Park, Beaverton, OR

Updated: 10:26 AM PDT

Temperature: 56.8 °F Dew Point: 56 °F Humidity: 98% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

Location: Whispering Woods Area, Beaverton, OR

Updated: 10:26 AM PDT

Temperature: 57.0 °F Dew Point: 57 °F Humidity: 99% Wind: Calm Pressure: 29.72 in Hourly Precipitation: - Graphs

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

Updated: 10:17 AM PDT

Temperature: 56.7 °F Dew Point: 56 °F Humidity: 96% Wind: SW at 3.0 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Graphs

Location: Cornelius, CORNELIUS, OR

Updated: 10:27 AM PDT

Temperature: 56.1 °F Dew Point: 56 °F Humidity: 99% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: 209th / Parker Court, Aloha, OR

Updated: 10:27 AM PDT

Temperature: 55.4 °F Dew Point: -0 °F Humidity: - Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Somerset Meadows Park, Beaverton, OR

Updated: 10:27 AM PDT

Temperature: 58.5 °F Dew Point: 55 °F Humidity: 88% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Farm near Meriwether Golf Course, Hillsboro, OR

Updated: 10:26 AM PDT

Temperature: 56.2 °F Dew Point: 55 °F Humidity: 96% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: at Harleman Park, Cornelius, OR

Updated: 10:17 AM PDT

Temperature: 56.5 °F Dew Point: 54 °F Humidity: 91% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET Aloha OR US, Beaverton, OR

Updated: 9:56 AM PDT

Temperature: 56 °F Dew Point: 52 °F Humidity: 88% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Helvetia, Hillsboro, OR

Updated: 10:27 AM PDT

Temperature: 59.2 °F Dew Point: 56 °F Humidity: 90% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:23 AM PDT

Temperature: 55.9 °F Dew Point: 56 °F Humidity: 99% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: 209th & Farmington Aloha, OR

Updated: 10:16 AM PDT

Temperature: 57.0 °F Dew Point: 57 °F Humidity: 99% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Copper Mountain, Aloha, OR

Updated: 10:26 AM PDT

Temperature: 57.6 °F Dew Point: 57 °F Humidity: 99% Wind: Calm Pressure: 29.44 in Hourly Precipitation: 0.00 in Graphs

Location: Hwy 26 and Cornell, Beaverton, OR

Updated: 10:20 AM PDT

Temperature: 58.2 °F Dew Point: 56 °F Humidity: 93% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Helvetia Oregon, Hillsboro, OR

Updated: 10:27 AM PDT

Temperature: 56.9 °F Dew Point: 54 °F Humidity: 92% Wind: Calm Pressure: 29.38 in Hourly Precipitation: 0.00 in Graphs

Location: Mason Hill, North Plains, OR

Updated: 10:20 AM PDT

Temperature: 57.4 °F Dew Point: 56 °F Humidity: 95% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Bethany, Portland, OR

Updated: 10:12 AM PDT

Temperature: 59.0 °F Dew Point: 56 °F Humidity: 89% Wind: SE at 2.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 8:34 AM PDT

Temperature: 54.7 °F Dew Point: 55 °F Humidity: 100% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.01 in Graphs

Location: Conifer Ridge, Beaverton, OR

Updated: 10:10 AM PDT

Temperature: 55.4 °F Dew Point: 51 °F Humidity: 86% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:26 AM PDT

Temperature: 58.3 °F Dew Point: 57 °F Humidity: 97% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
1009 am PDT Thursday Oct 30 2014 


Synopsis...after a few light showers today...steadier rain will 
shift over the region this evening and linger into Friday morning as 
a cold front slowly pushes through the area. Expect showers 
containing brief heavy rain...small hail and possibly some thunder 
Friday afternoon. Showers should quickly become isolated during the 
evening hours for those trick or treating. Hit or miss showers may 
linger into Saturday...before light rain spreads back across our 
northern zones Sunday with another wet system on tap for late Monday 
and Tuesday of next week. 


&& 


Update...National Weather Service radar depicts rain showers...some 
locally heavy...continuing across portions of the forecast area this 
morning...predominately north of a Lincoln City to Montana Hood line. 
Satellite imagery depicts a break in rain activity between the 
lifting warm front and advancing cold front over the southern 
portions of the area...and surface observations support this. 
Therefore lowered probability of precipitation a bit through this morning for Linn and 
interior Lane counties. 


Meanwhile...cameras and observations indicate that some locally dense 
fog has developed in the central and south Willamette Valley. Images 
depict a relatively shallow layer and expect this to mix out by 
midday. Otherwise...forecast remains on track and details in previous 
discussion remain valid. Cullen 


Previous discussion... /issued 237 am PDT Thursday Oct 30 2014/ 


Short term...today through Sunday...water vapor satellite imagery 
reveals a large digging shortwave trough near 140w. Ahead of this 
system...an old baroclinic zone is being re-energized and lifting 
back northward across the area in the form of a warm front. This 
system has tapped into precipitable water values in excess of 1 to 
1.25 inches. Light rain showers have broken out across western 
Oregon and Washington early this morning...but have only resulted in 
a couple hundredths of an inch of rain or less early this morning. 
With cloud tops continuing to cool to our south...expect off and on 
light showers to continue across most of the area today with perhaps 
a more extended break in the rain towards Lane and Linn counties 
later this morning. A more consolidated region of rain is currently 
lifting northward off the north Oregon and South Washington 
coast...a prelude of things to come tonight. 


A cold front currently near 130w will push eastward towards the coast 
this afternoon and evening. With good low and middle level 
support...expect a south-southwest to north-northeast band of rain to 
shift eastward towards the coast today...before pushing into the 
interior this evening and overnight. One to two inches of rain 
appear likely along the coast and across the higher terrain...with 
rain totals in the 0.50 to 1.00 range for many valley locations. 
This front may have a tendency to slow down late tonight into Friday 
morning more than current model guidance suggests due to a 120 knots 
jet digging down the backside of the upper level trough. 


Once the steadier rain shifts east of the region Friday...a much 
cooler and unstable airmass will spread into the region. Expect 
showers to pop in the afternoon hours...although this will be 
somewhat dependent on how quickly the aforementioned front shifts 
east of the area. Brief heavy rain and small hail will be the main 
threats with any showers that bubble up. Ocean temperatures certainly 
support thunder near the coast...and depending on clearing over the 
interior...a couple rumbles of thunder will be possible in the 
afternoon. Any shower activity over the interior should become much 
more isolated Friday evening as the lower atmosphere stabilizes. 
This should result in most trick or treaters staying dry Friday 
evening. 


The aforementioned cold front will allow snow levels to lower into 
the 4500 to 5000 feet range late Friday into Saturday. As the upper 
level trough digs...low level flow will weaken with this system. 
This should result in limited orographic precipitation enhancement 
Friday night into Saturday. As a result...snow amounts are expected 
to stay under Winter Weather Advisory criteria. Nonetheless...higher 
passes like Santiam Pass and Willamette passes should still see 
enough snow to at least impact travel off and on Friday evening into 
early Saturday...even if accumulations remain relatively light. 


A weak warm front spreading eastward may bring light rain to our 
forecast area late Saturday night into Sunday...especially across our 
northwestern zones. /Neuman 
&& 




Long term...Sunday night through Wednesday...little in the way of 
change in the extended...models seem to converging on the idea of a 
consolidated...but transient front bringing a good shot of rain to 
the area late Monday into Tuesday. Low end categorical to likely probability of precipitation 
were maintained for this period. However...the brunt of the quantitative precipitation forecast looks 
to remain across the olympic peninsula and points northward. With 
zonal flow to follow...probability of precipitation were kept a bit above climatology in the far 
extended. /Neuman 


&& 


Aviation...mainly VFR conditions along the coast and north 
Willamette Valley. The central and south Willamette Valley will 
experience LIFR conditions with low stratus and fog through at 
19z. Conditions lowering to MVFR with occasional IFR visible and ceilings 
this afternoon as the cold front moves onshore. Expect frontal 
passage along the coast around 21z and inland around 00z. 


Surface low pressure deepens off the north Oregon coast and will 
induce a moderate pressure gradient across the Cascades with east 
wind gusts 25 to 30 knots possible at kttd through 21z. Expect 
lighter easterly winds at kpdx. 


Kpdx and approaches...mainly VFR conditions expected through 
tomorrow morning. Chance of MVFR ceilings and visible today as the cold 
front moves through. IFR conditions are highly unlikely but if 
they do form they will likely be brief in nature. Breezy east 
winds with gusts 15-20 knots possible through 02z. /27/64 


&& 


Marine...a cold front will move across the waters today. S winds 
this afternoon with gusts of 25 to 30 knots expected. The Small Craft Advisory for 
winds remains in effect through early this evening. Winds quiet 
down behind the front. However....there remains a slight chance 
of thunderstorms over the coastal waters Friday with gusty winds possible. 
Winds will turn to the northwest by Sat...but should remain below Small Craft Advisory 
criteria. 


Seas may climb to 10 feet as winds peak today but it should be 
brief and localized in nature. Seas above 10 feet possible Friday 
afternoon as another upper level low moves across the waters with 
a much stronger system expected early next week. /27/64 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds until 7 PM PDT this evening for 
coastal waters from Cape Shoalwater Washington to Florence or out 60 nm. 


Small Craft Advisory for rough Columbia River bar from 9 PM 
this evening to 1 am PDT Friday. 


&& 


$$ 


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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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