Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Overcast

63°F

17°C

Humidity 75%
Wind Speed NNE 3 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 04 Sep 02:54 PM PDT
Extended Forecast for

Tumwater WA

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm.  Partly sunny, with a high near 73. Light and variable wind.  Chance of precipitation is 30%.

    High: 73 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly before 7pm.  Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm.

    Low: 49 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. Calm wind.
Saturday
A slight chance of showers and thunderstorms between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 73. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of rain, mainly before 7pm. Partly cloudy, with a low around 48. Calm wind.
Sunday
Mostly sunny, with a high near 74. Calm wind becoming north northeast around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm.
Labor Day
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly cloudy, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 52.
Friday
A chance of rain. Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 46.97°N 122.92°W (Elev. 200 ft)
1:41 pm PDT Sep 4, 2026
3pm PDT Sep 4, 2026-6pm PDT Sep 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database