Hillsboro, Oregon Weather Conditions

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Current Conditions

  • 48°
  • Rain
  • Wind: Calm
  • Humidity: 100%
  • Visibility: 1.2 miles
  • Dew Point: 48°
  • Pressure: 30.26 in. 0

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Rain
  • High: 52 °
  • Low: 41 °
  • Rain
  • Monday
  • Chance of Rain
  • High: 52 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 61 °
  • Low: 50 °
  • Chance of Rain
  • Wednesday
  • Mostly Cloudy
  • High: 57 °
  • Low: 46 °
  • Mostly Cloudy
  • Thursday
  • Chance of Rain
  • High: 57 °
  • Low: 34 °
  • Chance of Rain

Forecast for Hillsboro, Oregon

Updated: 7:00 AM PST on November 23, 2014

  • Sunday

    Overcast with rain. High of 52F. Winds from the SSW at 10 to 15 mph. Chance of rain 70%.

  • Sunday Night

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

  • Monday

    Overcast with a chance of rain. Fog early. High of 52F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Monday Night

    Overcast with a chance of rain. Low of 45F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of rain. Fog early. High of 61F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast in the evening, then mostly cloudy. Low of 50F. Winds less than 5 mph.

  • Wednesday

    Overcast. Fog early. High of 57F. Winds less than 5 mph.

  • Wednesday Night

    Overcast. Low of 46F. Winds less than 5 mph.

  • Thursday

    Overcast with a chance of rain. High of 57F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 34F. Winds from the SSE at 5 to 10 mph.

  • Friday

    Overcast with a chance of rain. Fog early. High of 50F. Winds from the SSE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Friday Night

    Overcast. Fog overnight. Low of 30F. Winds less than 5 mph.

  • Saturday

    Mostly cloudy with a chance of rain. Fog early. High of 46F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 37F. Winds less than 5 mph. Chance of rain 50%.

  • Sunday

    Mostly cloudy with a chance of rain. Fog early. High of 45F. Winds from the East at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Mostly cloudy with a chance of rain. Low of 34F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Monday

    Mostly cloudy with a chance of rain. Fog early. High of 39F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Monday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 37F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 39F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Tuesday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 39F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. Fog early. High of 41F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Wednesday Night

    Clear. Low of 39F. Winds from the SE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: CWS - Orion, Hillsboro, OR

Updated: 1:55 PM PST

Temperature: 48.9 °F Dew Point: 47 °F Humidity: 92% Wind: SW at 2.6 mph Pressure: 30.23 in Hourly Precipitation: 0.24 in Windchill: 49 °F Graphs

Location: Northeast Meadow Lane, Hillsboro, OR

Updated: 1:29 PM PST

Temperature: 49.5 °F Dew Point: 49 °F Humidity: 98% Wind: North at - Pressure: 30.25 in Hourly Precipitation: 0.28 in Windchill: 50 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 1:54 PM PST

Temperature: 48.6 °F Dew Point: 46 °F Humidity: 92% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.18 in Windchill: 49 °F Graphs

Location: Jackson School, Hillsboro, OR

Updated: 1:48 PM PST

Temperature: 48.4 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: 30.04 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Connell Avenue, Hillsboro, OR

Updated: 1:58 PM PST

Temperature: 49.5 °F Dew Point: 45 °F Humidity: 85% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.19 in Windchill: 50 °F Graphs

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

Updated: 1:44 PM PST

Temperature: 49.9 °F Dew Point: 48 °F Humidity: 93% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.35 in Windchill: 50 °F Graphs

Location: Edwards Meadows, Hillsboro, OR

Updated: 1:56 PM PST

Temperature: 48.9 °F Dew Point: 47 °F Humidity: 94% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.36 in Windchill: 49 °F Graphs

Location: Lely Park, Hillsboro, OR

Updated: 1:56 PM PST

Temperature: 50.0 °F Dew Point: - Humidity: - Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.31 in Windchill: - Graphs

Location: Near Century High School, Hillsboro, OR

Updated: 1:54 PM PST

Temperature: 49.8 °F Dew Point: 48 °F Humidity: 93% Wind: Calm Pressure: 17.72 in Hourly Precipitation: 0.39 in Windchill: 50 °F Graphs

Location: Baseline / Cornelius Pass, Aloha, OR

Updated: 1:58 PM PST

Temperature: 49.9 °F Dew Point: 48 °F Humidity: 94% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.34 in Windchill: 50 °F Graphs

Location: Tualatin River Farm, Hillsboro, OR

Updated: 1:55 PM PST

Temperature: 49.2 °F Dew Point: 48 °F Humidity: 97% Wind: SW at 1.0 mph Pressure: 30.25 in Hourly Precipitation: 0.43 in Windchill: 49 °F Graphs

Location: Rock Creek, Portland, OR

Updated: 1:55 PM PST

Temperature: 49.4 °F Dew Point: 48 °F Humidity: 93% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.29 in Windchill: 49 °F Graphs

Location: Seminole Estates, Beaverton, OR

Updated: 1:58 PM PST

Temperature: 49.3 °F Dew Point: 46 °F Humidity: 87% Wind: Calm Pressure: 30.43 in Hourly Precipitation: 0.26 in Windchill: 49 °F Graphs

Location: Councel Creek, Cornelius, OR

Updated: 1:58 PM PST

Temperature: 48.8 °F Dew Point: 47 °F Humidity: 95% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.16 in Windchill: 49 °F Graphs

Location: Longacre Park, Beaverton, OR

Updated: 12:39 PM PST

Temperature: 51.1 °F Dew Point: 46 °F Humidity: 84% Wind: SSW at 2.9 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Rock Creek - Bethany Lake, Portland, OR

Updated: 1:58 PM PST

Temperature: 51.8 °F Dew Point: 46 °F Humidity: 81% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Whispering Woods Area, Beaverton, OR

Updated: 1:55 PM PST

Temperature: 49.1 °F Dew Point: 49 °F Humidity: 98% Wind: ESE at 2.7 mph Pressure: 30.13 in Hourly Precipitation: - Windchill: 49 °F Graphs

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

Updated: 1:47 PM PST

Temperature: 49.1 °F Dew Point: 48 °F Humidity: 95% Wind: SSE at 1.0 mph Pressure: 30.09 in Hourly Precipitation: 0.31 in Windchill: 49 °F Graphs

Location: Cornelius, CORNELIUS, OR

Updated: 1:57 PM PST

Temperature: 48.9 °F Dew Point: 48 °F Humidity: 97% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.19 in Windchill: 49 °F Graphs

Location: East of Cornelius Grade School, Cornelius, OR

Updated: 1:53 PM PST

Temperature: 48.7 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: 30.05 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: 209th / Parker Court, Aloha, OR

Updated: 1:58 PM PST

Temperature: 48.4 °F Dew Point: -6 °F Humidity: - Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Somerset Meadows Park, Beaverton, OR

Updated: 1:57 PM PST

Temperature: 48.6 °F Dew Point: 48 °F Humidity: 96% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.30 in Windchill: 49 °F Graphs

Location: at Harleman Park, Cornelius, OR

Updated: 1:56 PM PST

Temperature: 49.1 °F Dew Point: 46 °F Humidity: 91% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.32 in Windchill: 49 °F Graphs

Location: Helvetia, Hillsboro, OR

Updated: 1:58 PM PST

Temperature: 49.5 °F Dew Point: 48 °F Humidity: 93% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.22 in Windchill: 50 °F Graphs

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

Updated: 1:58 PM PST

Temperature: 48.3 °F Dew Point: 48 °F Humidity: 99% Wind: WNW at 3.0 mph Pressure: 30.24 in Hourly Precipitation: 0.52 in Windchill: 48 °F Graphs

Location: 209th & Farmington Aloha, OR

Updated: 1:55 PM PST

Temperature: 49.4 °F Dew Point: 49 °F Humidity: 97% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.44 in Windchill: 49 °F Graphs

Location: Hwy 26 and Cornell, Beaverton, OR

Updated: 1:50 PM PST

Temperature: 49.3 °F Dew Point: 48 °F Humidity: 97% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.30 in Windchill: 49 °F Graphs

Location: Helvetia Oregon, Hillsboro, OR

Updated: 1:58 PM PST

Temperature: 47.7 °F Dew Point: 46 °F Humidity: 92% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Mason Hill, North Plains, OR

Updated: 1:56 PM PST

Temperature: 48.9 °F Dew Point: 46 °F Humidity: 89% Wind: Calm Pressure: 30.44 in Hourly Precipitation: 0.30 in Windchill: 49 °F Graphs

Location: Bethany, Portland, OR

Updated: 1:55 PM PST

Temperature: 49.4 °F Dew Point: 49 °F Humidity: 97% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: South Hills, Cornelius, OR

Updated: 1:58 PM PST

Temperature: 50.5 °F Dew Point: 49 °F Humidity: 94% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.13 in Windchill: - Graphs

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

Updated: 1:50 PM PST

Temperature: 49.1 °F Dew Point: 49 °F Humidity: 100% Wind: ENE at 1.0 mph Pressure: 30.16 in Hourly Precipitation: 0.37 in Windchill: 49 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Portland or 
1012 am PST sun Nov 23 2014 


Synopsis...convective showers will continue over SW Washington and 
northwest Oregon through this morning. These showers are associated with a 
slow moving front that will stall over northwest Washington before falling 
a part over northwest Oregon this afternoon. Rain and mountain snow is 
expected for Washington this morning with less accumulations for 
Oregon this afternoon. A flat upper ridge will build 
into California and Oregon Monday and Tuesday...but should remain 
weak enough for systems to clip our northern zones with occasional 
wet weather. Valley inversions will likely build in the central and 
south Willamette Valley...with fog possibly becoming more persistent 
by the middle of next week. Another organized front is expected for 
the Thanksgiving weekend. 


&& 


Update...the lone of convective showers over the northern edge of 
the Portland forecast area is moving slowly southward. A few cells 
are sprouting up ahead of this line. One in particular...just off of 
Long Beach Washington had strong rotation signatures indicative of a tornado 
and a Tornado Warning was issued as the storm tracked inland. The 
storm finally weakened over Naselle Washington. We have received no 
observations near this storm to verify or deny the presence of a 
tornado. One spotter just north of Long Beach had pea-size hail and 
lightning and did not see the rotation. However...the best viewing of 
any rotation would be south of the storm...and south of Long Beach. 
Vertical shear in the atmosphere will continue a threat for weakly 
organized storms through noon today. Most of these storms will be 
over the waters...but they may occasional move onshore. We will be 
monitoring radar closely this morning. 


The front has produced .3 to .5 inches of rain in the past 3 hours 
north of our area. The higher amounts are most likely associated with 
the convective band. However still think the SW Washington Cascades 
will see some snow accumulations above 4000 feet and have not made 
any changes to the Winter Weather Advisory with the update. 
Elsewhere...expect cool and rainy conditions through this evening. 


High pressure begins to build over the eastern Pacific late tonight 
into Monday...which should keep the region fairly dry but cloudy. But 
the threat for valley fog increases...especially for the central and 
south Willamette Valley as well as the central coast. Models have 
been consistent in showing a few disturbances riding over the ridge 
and bringing some precipitation mainly to the far northern forecast zones by 
Monday evening. Expect this pattern of northern showers with southern 
valley and coastal fog to continue through Wednesday. Tj/27 


Long term...Wednesday night through Sunday...overall models are 
attempting to flatten the upper level ridge late Wednesday. But once 
we get to Thanksgiving morning...model solutions vary concerning the 
next Pacific frontal system approaching the region Thanksgiving day. 
The 06z GFS shows a rather well-organized frontal band reaching the 
SW Washington/northwest Oregon coast in the morning...with rain spreading 
inland by the afternoon...right in time for Thanksgiving dinner. Will 
have to see what the 12z European model (ecmwf) does with this system...and whether or 
not it maintains its lighter rain/ridgy solution. A much 
stronger and wetter system looks to move in over the weekend which 
could pose a threat to travelers returning after the Thanksgiving 
Holiday. Details at this point are still unknown and will be refined 
with future updates. The good news is that temperatures in the 
extended will be at or above seasonal normals. /64/27 


&& 


Aviation...conditions are primarily VFR across the region this 
morning. A front along the Washington coast and over the coastal 
waters is producing significant lightning and gusty winds. The 
front is forecast to weaken as it pushes into northwest Oregon later 
this morning...but it may allow for a period of MVFR conditions 
at kast later this morning and the kpdx metropolitan taf sites towards 
midday. There is a chance MVFR conditions may persist towards 12z 
Monday for the Portland metropolitan taf sites. Farther south where 
clearing this evening will be more likely to occur...IFR 
conditions may develop at keug...ksle and even khio towards 12z 
Monday. 


Kpdx and approaches...a Post frontal showery air mass will lead 
to predominantly VFR conditions today. A band of rain associated 
with a dying front may temporarily reduce ceilings into MVFR around 
midday. There is a chance these conditions could persist well 
into Sunday night...or perhaps deteriorate into high end IFR 
conditions...but confidence in these details is low at this point. 
Pyle/neuman 


&& 


Marine...a slow moving front brought a band of strong 
thunderstorms into the West Washington coastal waters this morning. 
Based on several reports of winds in excess of 40 miles per hour with some of 
these storms further north along the Washington coast...decided to 
issue a special marine warning for the waters as far south as the 
Columbia River bar. Expect periodic gusts in excess of 34 knots along 
with frequent lightning in some of the stronger storms. 
Otherwise...expect gusty winds to continue over the northern 
coastal waters into early this afternoon. Then winds drop off 
considerably later this afternoon as the front weakens. Seas in 
the 12 to 13 feet range at current will likely peak in the middle teens 
later today before decreasing tonight into Monday. 


A weak front will push into the waters late Monday...but aside 
from some Small Craft Advisory level wind gusts of 25 knots...not 
expecting much impact. Winds may stay a bit gustier across the 
northern waters early to middle week before a slow moving low pressure 
system impacts the waters middle to late next week. Low end gale force 
wind gusts might be squeezed out of this system at some point...but 
the scenario does not look all that promising for a solid gale 
force or higher wind event for the waters. Pyle/neuman 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...Winter Weather Advisory until 10 PM PST this evening for South 
Washington Cascades. 


Pz...Small Craft Advisory for winds until 3 PM PST this afternoon for 


Coastal waters from Cape Shoalwater Washington to Cascade Head or out 
60 nm. 


Small Craft Advisory for hazardous seas until 9 am PST Monday 
for coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


Small Craft Advisory for rough Columbia River bar until 9 am 
PST Monday. 


&& 


$$ 


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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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