Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Clear

52°F

11°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 09 Sep 01:35 AM PDT
Extended Forecast for

Tumwater WA

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 8am.  Otherwise, mostly sunny, with a high near 80. Calm wind becoming north northeast 5 to 7 mph in the morning.

    High: 80 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am.  Otherwise, increasing clouds, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Mostly cloudy, with a high near 72. Light and variable wind becoming west 5 to 9 mph in the morning.

    High: 72 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. Southwest wind 7 to 10 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain after 11pm.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Rain likely before 11am, then a chance of showers and thunderstorms after 11am.  Areas of fog before 10am.  Otherwise, mostly cloudy, with a high near 68.

    High: 68 °F

    Showers
    Likely and
    Areas Fog

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 50. Calm wind.
Wednesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming north northeast 5 to 7 mph in the morning.
Wednesday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 54. Calm wind.
Thursday
Mostly cloudy, with a high near 72. Light and variable wind becoming west 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 47. Southwest wind 7 to 10 mph.
Friday
Mostly cloudy, with a high near 68.
Friday Night
A 30 percent chance of rain after 11pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 48.
Saturday
Rain likely before 11am, then a chance of showers and thunderstorms after 11am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 68.
Saturday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 48.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 46.97°N 122.92°W (Elev. 200 ft)
12:30 am PDT Sep 9, 2026
1am PDT Sep 9, 2026-6pm PDT Sep 15, 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