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

59°F

15°C

Humidity 36%
Wind Speed S 9 G 16 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 29 Mar 12:15 pm CDT
Extended Forecast for

Ossian IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 65. South wind around 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. South wind 5 to 8 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 78. South wind 5 to 10 mph.

    High: 78 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 65. Breezy, with a southwest wind 13 to 17 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Blustery, with a north wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 31 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow showers after 1pm. Partly sunny, with a high near 45. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 45 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers likely, mainly after 1am. Mostly cloudy, with a low around 29. East wind 13 to 15 mph. Chance of precipitation is 70%.

    Low: 29 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain likely, possibly mixed with snow showers. Mostly cloudy, with a high near 39. Breezy, with a northeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 39 °F

    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 65. South wind around 13 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 43. South wind 5 to 8 mph.
Monday
Increasing clouds, with a high near 78. South wind 5 to 10 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 65. Breezy, with a southwest wind 13 to 17 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 31. Blustery, with a north wind 11 to 16 mph, with gusts as high as 24 mph.
Wednesday
A chance of rain and snow showers after 1pm. Partly sunny, with a high near 45. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Rain and snow showers likely, mainly after 1am. Mostly cloudy, with a low around 29. East wind 13 to 15 mph. Chance of precipitation is 70%.
Thursday
Rain likely, possibly mixed with snow showers. Mostly cloudy, with a high near 39. Breezy, with a northeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 30. East wind 9 to 13 mph, with gusts as high as 21 mph.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 48. East wind 9 to 11 mph.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 38. East wind 11 to 13 mph. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 53. Southeast wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
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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:
11:41 am CDT Mar 29, 2026
Forecast Valid:
12pm CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation