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.

Overcast

63°F

17°C

Humidity 73%
Wind Speed S 6 mph
Barometer 30.17 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Jun 2:35 am CDT
Extended Forecast for

Marathon IA

  • Overnight

    Overnight: Partly cloudy, with a low around 57. South southeast wind around 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain, mainly between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 58. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 80. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Becoming
    Sunny

  • Wednesday Night

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

    Low: 54 °F

    Increasing
    Clouds

  • 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.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 57. South southeast wind around 5 mph.
Tuesday
A chance of rain, mainly between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms before 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 58. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 80. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Increasing clouds, 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.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 84. Breezy.
Saturday Night
A 40 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.
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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:
1:33 am CDT Jun 23, 2026
Forecast Valid:
2am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
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