Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

72°F

22°C

Humidity 76%
Wind Speed S 3 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Aug 8:54 pm CDT
Extended Forecast for

Elk Run Heights IA

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South southwest wind 3 to 6 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 78. South wind 6 to 8 mph becoming west northwest in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 61. West wind around 5 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Light north northeast wind.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. Light and variable wind.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly clear, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am.  Partly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. South southwest wind 3 to 6 mph.
Tuesday
Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 78. South wind 6 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 61. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 77. Light north northeast wind.
Wednesday Night
Partly cloudy, with a low around 59. Light and variable wind.
Thursday
Sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 62.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 62.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Elk Run Heights IA
 42.46°N 92.26°W
6:12 pm CDT Aug 17, 2026
9pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database