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Hazardous Weather Conditions

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

68°F

20°C

Humidity 83%
Wind Speed W 5 mph
Barometer 29.94 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 Jun 10:35 pm CDT
Extended Forecast for

Marathon IA

Extreme Heat Watch June 20, 11:00am until June 21, 10:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 87. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny and hot, with a high near 96. Heat index values as high as 105. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 96 °F

    Hot and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    Low: 75 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 98 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Breezy.

    Low: 76 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Breezy.

    High: 97 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy.

    Low: 72 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. West wind around 5 mph.
Juneteenth
Sunny, with a high near 87. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny and hot, with a high near 96. Heat index values as high as 105. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph.
Friday Night
Mostly clear, with a low around 75. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Saturday
Sunny and hot, with a high near 98. 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.
Sunday
Sunny and hot, with a high near 97. Breezy.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. 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 62. Chance of precipitation is 80%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marathon IA
 42.85°N 94.97°W (Elev. 1375 ft)
Last Update:
10:30 pm CDT Jun 18, 2025
Forecast Valid:
10pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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