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.

Mostly Cloudy

75°F

24°C

Humidity 54%
Wind Speed SW 10 mph
Barometer 30.13 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Jun 4:35 pm CDT
Extended Forecast for

Marathon IA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 81. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. North northeast wind around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. East wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79. Southeast wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 84. Breezy.

    High: 84 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy.

    Low: 69 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 81. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 77. North northeast wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 55. East wind around 5 mph.
Friday
Mostly sunny, with a high near 79. Southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Partly sunny, with a high near 84. Breezy.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy.
Sunday
Mostly sunny, with a high near 94. Breezy.
Sunday Night
Mostly clear, with a low around 71. Breezy.
Monday
Sunny, with a high near 94. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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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:
4:28 pm CDT Jun 23, 2026
Forecast Valid:
4pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation