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.

Fair

66°F

19°C

Humidity 78%
Wind Speed SE 7 mph
Barometer 30.36 in
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 2 Aug 9:55 am CDT
Extended Forecast for

Marathon IA

  • Today

    Today: Areas of smoke after 2pm. Partly sunny, with a high near 75. South southeast wind 5 to 10 mph.

    High: 75 °F

    Mostly Sunny
    then Areas
    Smoke

  • Tonight

    Tonight: Areas of smoke after 8pm. Mostly cloudy, with a low around 58. South southeast wind around 10 mph.

    Low: 58 °F

    Areas Smoke

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Areas of smoke. Partly sunny, with a high near 75. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58. South southeast wind around 10 mph.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 76. South southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.

    Low: 59 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

Detailed Forecast

Today
Areas of smoke after 2pm. Partly sunny, with a high near 75. South southeast wind 5 to 10 mph.
Tonight
Areas of smoke after 8pm. Mostly cloudy, with a low around 58. South southeast wind around 10 mph.
Sunday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Areas of smoke. Partly sunny, with a high near 75. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58. South southeast wind around 10 mph.
Monday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 76. South southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 88.
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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:
7:45 am CDT Aug 2, 2025
Forecast Valid:
10am CDT Aug 2, 2025-6pm CDT Aug 8, 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