Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

47°F

8°C

Humidity 87%
Wind Speed ESE 3 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 12 Jan 07:00 AM PST
Extended Forecast for

4 Miles SSW Onalaska WA

  • Today

    Today: A slight chance of rain before 9am, then a slight chance of rain after 11am.  Mostly cloudy, with a high near 52. Light south wind.  Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Patchy fog before 10pm, then patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of dense fog before noon, then patchy dense fog after 3pm.  Otherwise, partly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Areas Dense
    Fog

  • Tuesday Night

    Tuesday Night: Areas of fog.  Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Areas Fog

  • Wednesday

    Wednesday: Patchy dense fog between 9am and noon.  Otherwise, mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 1am.  Otherwise, partly cloudy, with a low around 38.

    Low: 38 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
A slight chance of rain before 9am, then a slight chance of rain after 11am. Mostly cloudy, with a high near 52. Light south wind. Chance of precipitation is 20%.
Tonight
Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Tuesday
Areas of dense fog before noon, then patchy dense fog after 3pm. Otherwise, partly sunny, with a high near 54. Calm wind.
Tuesday Night
Areas of fog. Otherwise, partly cloudy, with a low around 37. Calm wind.
Wednesday
Patchy dense fog between 9am and noon. Otherwise, mostly sunny, with a high near 50. Calm wind.
Wednesday Night
Patchy fog before 1am. Otherwise, partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 34.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 53.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 34.
Sunday
Sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.52°N 122.75°W (Elev. 423 ft)
7:00 am PST Jan 12, 2026
7am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
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Additional Resources

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