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

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

39°F

4°C

Humidity 87%
Wind Speed Vrbl 5 mph
Barometer 29.96 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 12 Jan 5:35 pm CST
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44. Breezy, with a west wind 15 to 18 mph, with gusts as high as 32 mph.

    High: 44 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. Blustery, with a northwest wind 17 to 24 mph, with gusts as high as 32 mph.

    Low: 18 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 23. Blustery, with a north wind 20 to 25 mph, with gusts as high as 33 mph.

    High: 23 °F

    Decreasing
    Clouds and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 8. North wind 5 to 15 mph.

    Low: 8 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of snow after noon. Partly sunny, with a high near 28. Northwest wind 5 to 11 mph becoming south in the afternoon. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely. Cloudy, with a low around 22. South wind 11 to 13 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 22 °F

    Snow Likely

  • Friday

    Friday: Snow likely, mainly after noon. Mostly cloudy, with a high near 30. Blustery, with a northwest wind 13 to 18 mph. Chance of precipitation is 60%.

    High: 30 °F

    Snow Likely
    and Blustery

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 5. Blustery, with a northwest wind 15 to 18 mph.

    Low: 5 °F

    Chance Snow
    and Blustery

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 44. Breezy, with a west wind 15 to 18 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 18. Blustery, with a northwest wind 17 to 24 mph, with gusts as high as 32 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 23. Blustery, with a north wind 20 to 25 mph, with gusts as high as 33 mph.
Wednesday Night
Mostly clear, with a low around 8. North wind 5 to 15 mph.
Thursday
A 40 percent chance of snow after noon. Partly sunny, with a high near 28. Northwest wind 5 to 11 mph becoming south in the afternoon. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely. Cloudy, with a low around 22. South wind 11 to 13 mph becoming west after midnight. Chance of precipitation is 70%.
Friday
Snow likely, mainly after noon. Mostly cloudy, with a high near 30. Blustery, with a northwest wind 13 to 18 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 5. Blustery, with a northwest wind 15 to 18 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 10. Northwest wind around 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around -1. Northwest wind 11 to 14 mph.
Sunday
Partly sunny, with a high near 13. West wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 1. West wind 11 to 13 mph.
M.L.King Day
Partly sunny, with a high near 15. Northwest wind 11 to 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
Last Update:
5:06 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
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Additional Resources

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Chance of Precipitation