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.

Fair

41°F

5°C

Humidity 61%
Wind Speed SW 8 mph
Barometer 29.99 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Jan 5:35 pm CST
Extended Forecast for

Marathon IA

  • Tonight

    Tonight: Partly cloudy, with a low around 36. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Breezy, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 49 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 19 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Sunny, with a high near 26. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 26 °F

    Sunny and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 12. North wind 5 to 10 mph becoming southwest after midnight.

    Low: 12 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 33. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 25. Blustery.

    Low: 25 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 31. Blustery.

    High: 31 °F

    Chance Snow
    and Blustery

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5. Blustery.

    Low: 5 °F

    Blustery.
    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 49. Breezy, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Tuesday Night
Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 26. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 12. North wind 5 to 10 mph becoming southwest after midnight.
Thursday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 33. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25. Blustery.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. Blustery.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5. Blustery.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 14. Blustery.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Mostly cloudy, with a low around 6.
M.L.King Day
Mostly sunny, with a high near 26.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marathon IA
 42.85°N 95°W (Elev. 1358 ft)
Last Update:
5:03 pm CST Jan 12, 2026
Forecast Valid:
6pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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