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 >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

73°F

23°C

Humidity 59%
Wind Speed SE 3 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 9 Aug 10:53 am CDT
Extended Forecast for

Vienna SD

  • Today

    Today: Sunny, with a high near 81. Light west wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. West wind 7 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 77. West northwest wind 7 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. West northwest wind 5 to 7 mph becoming south after midnight.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. South southwest wind around 9 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West wind 7 to 9 mph becoming north northwest in the morning.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northeast wind 7 to 9 mph becoming southeast after midnight.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Light west wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 60. West wind 7 to 10 mph.
Sunday
Mostly sunny, with a high near 77. West northwest wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 59. West northwest wind 5 to 7 mph becoming south after midnight.
Monday
Sunny, with a high near 83. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 62. South southwest wind around 9 mph.
Tuesday
Sunny, with a high near 82. West wind 7 to 9 mph becoming north northwest in the morning.
Tuesday Night
Mostly clear, with a low around 62. Northeast wind 7 to 9 mph becoming southeast after midnight.
Wednesday
Sunny, with a high near 85. South wind 9 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 85.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna SD
 44.71°N 97.47°W (Elev. 1798 ft)
10:45 am CDT Aug 9, 2025
11am CDT Aug 9, 2025-6pm CDT Aug 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database