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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

SPRING CANYON (SPCW1)

Lat: 47.93472°NLon: 118.93472°WElev: 1340.0ft.

NA

80°F

27°C

Humidity 37%
Wind Speed NE 7 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Heat Index80°F (27°C)
Last update 09 Aug 10:37 AM PDT
Extended Forecast for

Coulee Dam WA

Heat Advisory August 10, 12:00pm until August 12, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 93. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. Northwest wind 3 to 6 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 69. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 21 mph.

    Low: 69 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. Light and variable wind becoming west 5 to 9 mph in the morning.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 70.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 66. Northwest wind 3 to 6 mph.
Sunday
Sunny and hot, with a high near 101. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
Clear, with a low around 69. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 21 mph.
Monday
Sunny and hot, with a high near 102. Light and variable wind becoming west 5 to 9 mph in the morning.
Monday Night
Clear, with a low around 70.
Tuesday
Sunny and hot, with a high near 103.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee Dam WA
 47.99°N 118.97°W (Elev. 1178 ft)
Last Update:
10:16 am PDT Aug 9, 2025
Forecast Valid:
11am PDT Aug 9, 2025-6pm PDT Aug 15, 2025
 
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