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

BRITTON (KBTN)

Lat: 45.82°NLon: 97.74°WElev: 1318ft.

Overcast

77°F

25°C

Humidity 94%
Wind Speed N 6 mph
Barometer 29.75 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 8 Aug 6:55 pm CDT
Extended Forecast for

Hecla SD

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light and variable wind becoming west northwest 5 to 9 mph in the evening. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. Breezy, with a west southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 82 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. West wind 5 to 7 mph becoming south southwest in the evening.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. West southwest wind 6 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. West wind around 7 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. West wind 6 to 9 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. East wind around 7 mph becoming south after midnight.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light and variable wind becoming west northwest 5 to 9 mph in the evening. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 82. Breezy, with a west southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly clear, with a low around 58. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 81. West wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 57. West wind 5 to 7 mph becoming south southwest in the evening.
Monday
Mostly sunny, with a high near 83. West southwest wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 59. West wind around 7 mph.
Tuesday
Sunny, with a high near 83. West wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 60. East wind around 7 mph becoming south after midnight.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 63. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hecla SD
 45.87°N 98.14°W (Elev. 1293 ft)
Last Update:
6:46 pm CDT Aug 8, 2025
Forecast Valid:
7pm CDT Aug 8, 2025-6pm CDT 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