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

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

86°F

30°C

Humidity 11%
Wind Speed NW 12 G 22 mph
Barometer 29.84 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Apr 4:35 pm CDT
Extended Forecast for

Storm Lake IA

  • Tonight

    Tonight: Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming southeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 85 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 58. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Breezy.
    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.

    High: 74 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. South southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 63. Northwest wind around 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming southeast after midnight.
Wednesday
Sunny, with a high near 85. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 58. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. South southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday
Sunny, with a high near 63. Northwest wind around 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 39.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 62. Breezy.
Sunday Night
Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 60. Breezy.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 38. Breezy.
Tuesday
Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Storm Lake IA
 42.64°N 95.21°W (Elev. 1398 ft)
Last Update:
4:38 pm CDT Apr 21, 2026
Forecast Valid:
4pm CDT Apr 21, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation