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

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fog/Mist

34°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 29.64 in
Dewpoint 34°F (1°C)
Visibility 6.00 mi
Last update 5 Jan 11:15 pm CST
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: A slight chance of rain between midnight and 1am. Patchy fog after 1am. Otherwise, cloudy, with a low around 32. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of rain between 7am and 10am. Patchy fog between noon and 1pm. Otherwise, cloudy, with a high near 37. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog before 11pm, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 27. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 27 °F

    Patchy Fog

  • Wednesday

    Wednesday: Sunny, with a high near 41. South wind 6 to 8 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. South wind 3 to 6 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Partly sunny, with a high near 42. Light and variable wind becoming northeast 5 to 7 mph in the morning.

    High: 42 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 33. Northeast wind 7 to 10 mph.

    Low: 33 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and snow. Mostly cloudy, with a high near 36. North wind around 11 mph. Chance of precipitation is 50%.

    High: 36 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 25. Northwest wind 11 to 14 mph. Chance of precipitation is 50%.

    Low: 25 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Tonight
A slight chance of rain between midnight and 1am. Patchy fog after 1am. Otherwise, cloudy, with a low around 32. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.
Tuesday
A slight chance of rain between 7am and 10am. Patchy fog between noon and 1pm. Otherwise, cloudy, with a high near 37. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Patchy fog before 11pm, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 27. Northwest wind 5 to 7 mph becoming light and variable.
Wednesday
Sunny, with a high near 41. South wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 30. South wind 3 to 6 mph.
Thursday
A 20 percent chance of rain after noon. Partly sunny, with a high near 42. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 33. Northeast wind 7 to 10 mph.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 36. North wind around 11 mph. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 25. Northwest wind 11 to 14 mph. Chance of precipitation is 50%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 28. Northwest wind around 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 13. Northwest wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 24. West wind around 10 mph.
Sunday Night
Partly cloudy, with a low around 15. Southwest wind around 9 mph.
Monday
Mostly sunny, with a high near 32. Southwest wind around 10 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
Last Update:
10:26 pm CST Jan 5, 2026
Forecast Valid:
11pm CST Jan 5, 2026-6pm CST Jan 12, 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