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

Hazardous Weather Conditions

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Partly Cloudy

82°F

28°C

Humidity 79%
Wind Speed S 15 mph
Barometer 29.76 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 20 Jun 10:35 am CDT
Extended Forecast for

6 Miles SW Alta IA

Extreme Heat Warning June 20, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Sunny and hot, with a high near 97. Heat index values as high as 107. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.

    High: 97 °F

    Hot and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 77. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.

    Low: 77 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 110. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 100 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 97 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 71 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 107. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.
Tonight
Mostly clear, with a low around 77. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 110. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Mostly clear, with a low around 76. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 97. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Monday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Alta IA
 42.61°N 95.38°W (Elev. 1404 ft)
Last Update:
9:02 am CDT Jun 20, 2025
Forecast Valid:
10am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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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