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

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

A Few Clouds

61°F

16°C

Humidity 83%
Wind Speed S 8 mph
Barometer 29.80 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Oct 2:55 am CDT
Extended Forecast for

3 Miles SE Marathon IA

  • Overnight

    Overnight: A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 59. South wind around 10 mph.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 73. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 73 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. West southwest wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Showers likely, mainly after 4pm. Increasing clouds, with a high near 65. Breezy, with a west southwest wind 5 to 10 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    High: 65 °F

    Mostly Sunny
    then Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely and
    Breezy then
    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 62. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 67. Breezy.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 59. South wind around 10 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 73. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 46. West southwest wind around 5 mph.
Saturday
Showers likely, mainly after 4pm. Increasing clouds, with a high near 65. Breezy, with a west southwest wind 5 to 10 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday
Sunny, with a high near 62. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 46.
Monday
Mostly sunny, with a high near 67. Breezy.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Areas of frost. Otherwise, mostly clear, with a low around 35.
Wednesday
Areas of frost. Otherwise, mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Marathon IA
 42.83°N 94.94°W (Elev. 1358 ft)
Last Update:
1:43 am CDT Oct 17, 2025
Forecast Valid:
3am CDT Oct 17, 2025-6pm CDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation