Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

Lat: 46.97333°NLon: 122.90333°WElev: 203.0ft.

Fog

32°F

0°C

Humidity 92%
Wind Speed S 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 30°F (-1°C)
Visibility 0.24 mi
Last update 20 Jan 10:35 PM PST
Extended Forecast for

4 Miles WNW Tumwater WA

  • Tonight

    Tonight: Widespread dense fog, mainly before 1am. Areas of freezing fog after 3am.  Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Areas
    Freezing Fog
    and Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog between 9am and 11am. Widespread dense freezing fog, mainly between 8am and 9am.  Otherwise, mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Dense
    Freezing Fog
    and Dense Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly before 1am. Areas of freezing fog after 3am. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Wednesday
Widespread dense fog between 9am and 11am. Widespread dense freezing fog, mainly between 8am and 9am. Otherwise, mostly sunny, with a high near 46. Calm wind.
Wednesday Night
Partly cloudy, with a low around 28. Calm wind.
Thursday
Partly sunny, with a high near 44. Calm wind.
Thursday Night
Partly cloudy, with a low around 29. Calm wind.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 26.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A slight chance of rain after 10am. Partly sunny, with a high near 44.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 34.
Monday
A chance of rain. Mostly cloudy, with a high near 46.
Monday Night
A chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Tumwater WA
 47°N 122.99°W (Elev. 174 ft)
7:01 pm PST Jan 20, 2026
10pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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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