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

Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Overcast

52°F

11°C

Humidity 71%
Wind Speed N 4 MPH
Barometer 30.47 in (1031.83 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 14 Jan 03:15 PM PST
Extended Forecast for

Tumwater WA

  • Tonight

    Tonight: Patchy dense fog. Otherwise, increasing clouds, with a low around 40. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 40 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Partly sunny, with a high near 49. Northeast wind 8 to 10 mph.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy dense fog after 1am. Otherwise, partly cloudy, with a low around 34. Northeast wind 6 to 8 mph.

    Low: 34 °F

    Partly Cloudy
    then Patchy
    Dense Fog

  • Friday

    Friday: Patchy dense fog before 10am. Otherwise, sunny, with a high near 50. Northeast wind 5 to 8 mph.

    High: 50 °F

    Patchy Dense
    Fog then
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 31. Northeast wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 51.

    High: 51 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog. Otherwise, mostly clear, with a low around 31.

    Low: 31 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 10am. Otherwise, sunny, with a high near 49.

    High: 49 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 30.

    Low: 30 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy dense fog. Otherwise, increasing clouds, with a low around 40. Calm wind becoming north northeast around 5 mph after midnight.
Thursday
Partly sunny, with a high near 49. Northeast wind 8 to 10 mph.
Thursday Night
Patchy dense fog after 1am. Otherwise, partly cloudy, with a low around 34. Northeast wind 6 to 8 mph.
Friday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 50. Northeast wind 5 to 8 mph.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 31. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 51.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 31.
Sunday
Areas of fog before 10am. Otherwise, sunny, with a high near 49.
Sunday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 30.
M.L.King Day
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 48.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 32.
Tuesday
Areas of fog. Otherwise, mostly sunny, with a high near 47.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 34.
Wednesday
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 46.97°N 122.92°W (Elev. 200 ft)
Last Update:
1:26 pm PST Jan 14, 2026
Forecast Valid:
3pm PST Jan 14, 2026-6pm PST Jan 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation