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Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Partly Cloudy

48°F

9°C

Humidity 87%
Wind Speed SE 3 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 19 May 03:00 AM PDT
Extended Forecast for

Tumwater WA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 47. Calm wind.

    Low: 47 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46. West wind 5 to 8 mph becoming calm after midnight.

    Low: 46 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.

    High: 71 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. North wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 47. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46. West wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 47. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 69.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Memorial Day
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 47.01°N 122.93°W (Elev. 148 ft)
Last Update:
11:26 pm PDT May 18, 2026
Forecast Valid:
3am PDT May 19, 2026-6pm PDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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