Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Mostly Cloudy

57°F

14°C

Humidity 47%
Wind Speed S 9 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 31 Mar 04:35 PM PDT
Extended Forecast for

Tumwater WA

  • Tonight

    Tonight: Rain, mainly before 5am.  Low around 40. South wind 6 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: Rain, mainly before 4pm.  High near 50. South wind 10 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 11pm.  Low around 36. Southwest wind 5 to 9 mph becoming light south southwest  after midnight.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain then
    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain.  Partly sunny, with a high near 53. Light south southwest wind becoming west 5 to 10 mph in the morning.

    High: 53 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. South southwest wind 5 to 10 mph.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, mainly before 5am. Low around 40. South wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly before 4pm. High near 50. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain, mainly before 11pm. Low around 36. Southwest wind 5 to 9 mph becoming light south southwest after midnight. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 53. Light south southwest wind becoming west 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 35. South southwest wind 5 to 10 mph.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 66.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain. Mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 46.97°N 122.92°W (Elev. 200 ft)
11:27 am PDT Mar 31, 2026
4pm PDT Mar 31, 2026-6pm PDT Apr 7, 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