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Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Hazardous Weather Conditions

Current conditions at

Olympia, Olympia Airport (KOLM)

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

Clear

63°F

17°C

Humidity 27%
Wind Speed NE 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 08 Apr 05:55 PM PDT
Extended Forecast for

Tumwater WA

Frost Advisory April 8, 11:00pm until April 9, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Light north wind.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming north northeast 5 to 7 mph in the morning.

    High: 67 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. North northeast wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 69. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45. Southwest wind 3 to 6 mph.

    Low: 45 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 57. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Light north wind.
Thursday
Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming north northeast 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 41. North northeast wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 69. Calm wind becoming west northwest around 5 mph in the afternoon.
Friday Night
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45. Southwest wind 3 to 6 mph.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 57. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42.
Sunday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 52.
Sunday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 41.
Monday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 54.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tumwater WA
 46.99°N 122.92°W (Elev. 151 ft)
Last Update:
11:26 am PDT Apr 8, 2026
Forecast Valid:
6pm PDT Apr 8, 2026-6pm PDT Apr 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation