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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Mist

54°F

12°C

Humidity 96%
Wind Speed NNW 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 53°F (12°C)
Visibility 5.00 mi
Last update 20 Sep 10:54 AM PDT
Extended Forecast for

2 Miles NNW Tumwater WA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 75 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 75. Light and variable wind.

    High: 75 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 49. West northwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 46. Calm wind.
Monday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 75. Light and variable wind.
Monday Night
Increasing clouds, with a low around 49. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly cloudy, with a high near 66.
Thursday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 48.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Tumwater WA
 47.01°N 122.93°W (Elev. 148 ft)
Last Update:
12:25 am PDT Sep 20, 2026
Forecast Valid:
11am PDT Sep 20, 2026-6pm PDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation