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

Shenandoah Municipal (KSDA)

Lat: 40.75°NLon: 95.42°WElev: 971ft.

Fair

91°F

33°C

Humidity 63%
Wind Speed S 15 G 23 mph
Barometer 29.72 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 8 Aug 3:35 pm CDT
Extended Forecast for

3 Miles W Riverton IA

Heat Advisory until August 8, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 8, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm.  Partly cloudy, with a low around 74. South southeast wind 11 to 16 mph, with gusts as high as 23 mph.

    Low: 74 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly between 10am and 1pm.  Partly sunny, with a high near 85. South wind 7 to 10 mph becoming north northeast in the morning.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 70. Northeast wind around 6 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm.  Partly sunny, with a high near 83. East wind 5 to 7 mph becoming north northwest in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm.  Mostly cloudy, with a low around 65. North northeast wind around 6 mph becoming light and variable  after midnight.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    Low: 65 °F

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 78. West northwest wind 3 to 6 mph.

    High: 78 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 106. South wind around 16 mph, with gusts as high as 25 mph.
Tonight
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 74. South southeast wind 11 to 16 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly between 10am and 1pm. Partly sunny, with a high near 85. South wind 7 to 10 mph becoming north northeast in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. Northeast wind around 6 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 83. East wind 5 to 7 mph becoming north northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 65. North northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 78. West northwest wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 63. Calm wind.
Tuesday
Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65. Light south wind.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 84. Light south wind increasing to 5 to 9 mph in the morning.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 68. South southeast wind around 7 mph.
Thursday
Sunny, with a high near 85. South wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 70. South southeast wind around 9 mph.
Friday
Sunny, with a high near 88. South wind 8 to 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Riverton IA
 40.69°N 95.64°W (Elev. 1056 ft)
3:47 pm CDT Aug 8, 2025
3pm CDT Aug 8, 2025-6pm CDT Aug 15, 2025
 
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