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

Hazardous Weather Conditions

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 564.0ft.

NA

54°F

12°C

Humidity 100%
Wind Speed N 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 10 Dec 03:00 AM PST
Extended Forecast for

Onalaska WA

Flood Watch December 10, 03:22am until December 12, 04:00pm
Flood Warning December 10, 03:22am until December 12, 05:04am
Click here for hazard details and duration
Flood Watch
Flood Warning
  •  
    Flood Watch December 10, 03:22am until December 12, 04:00pm
    Flood Warning December 10, 03:22am until December 12, 05:04am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 53 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: Rain. Patchy fog after 7am. High near 55. South southwest wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain. Patchy fog. Low around 48. South southwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain and
    Patchy Fog

  • Thursday

    Thursday: Rain. High near 53. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 47. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain. Cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: A chance of rain after 4pm. Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

Overnight
Rain likely. Patchy fog. Otherwise, cloudy, with a steady temperature around 53. South southwest wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. Patchy fog after 7am. High near 55. South southwest wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Patchy fog. Low around 48. South southwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 53. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 47. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of rain. Cloudy, with a high near 55.
Friday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 44.
Saturday
A chance of rain after 4pm. Partly sunny, with a high near 55.
Saturday Night
Rain, mainly after 10pm. Cloudy, with a low around 45.
Sunday
Rain. Cloudy, with a high near 52.
Sunday Night
Rain likely. Cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 53.
Monday Night
Rain. Cloudy, with a low around 43.
Tuesday
Rain. Cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
1:25 am PST Dec 10, 2025
Forecast Valid:
3am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
Forecast Discussion
 
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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