National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Fog

41°F

5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 41°F (5°C)
Visibility 0.25 mi
Last update 21 Nov 10:53 AM PST
Extended Forecast for

Hillsboro OR

  • Today

    Today: Mostly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Areas Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Rain likely after 4am. Patchy fog before 1am. Otherwise, mostly cloudy, with a low around 39. Calm wind. Chance of precipitation is 60%.

    Low: 39 °F

    Patchy Fog
    then Rain
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Rain. High near 52. Southwest wind 5 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Sunday Night

    Sunday Night: Showers. Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Showers

  • Monday

    Monday: A 50 percent chance of showers. Partly sunny, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers after 4am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 52. Calm wind.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 36. Calm wind.
Saturday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 52. Calm wind.
Saturday Night
Rain likely after 4am. Patchy fog before 1am. Otherwise, mostly cloudy, with a low around 39. Calm wind. Chance of precipitation is 60%.
Sunday
Rain. High near 52. Southwest wind 5 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 36. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 51.
Monday Night
A slight chance of showers after 4am. Mostly cloudy, with a low around 35.
Tuesday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 48.
Tuesday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 39.
Wednesday
Rain likely. Cloudy, with a high near 52.
Wednesday Night
Rain likely. Cloudy, with a low around 43.
Thanksgiving Day
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.55°N 122.96°W (Elev. 194 ft)
Last Update:
11:05 am PST Nov 21, 2025
Forecast Valid:
11am PST Nov 21, 2025-6pm PST Nov 27, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation