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.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 68°F (20°C)
Visibility 1.00 mi
Last update 20 Aug 4:55 am CDT
Extended Forecast for

Ossian IA

  • Today

    Today: Areas of fog before 9am. Otherwise, partly sunny, with a high near 79. Northeast wind 5 to 7 mph.

    High: 79 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Northeast wind around 6 mph becoming calm after midnight.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Calm wind.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77. Southwest wind 3 to 6 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 57. West wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 70. Northwest wind 6 to 13 mph.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. West wind 6 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Northwest wind 8 to 14 mph.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, partly sunny, with a high near 79. Northeast wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 61. Northeast wind around 6 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 76. Calm wind.
Thursday Night
Partly cloudy, with a low around 59. Calm wind.
Friday
Partly sunny, with a high near 77. Southwest wind 3 to 6 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 57. West wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 70. Northwest wind 6 to 13 mph.
Saturday Night
Mostly clear, with a low around 51. West wind 6 to 9 mph.
Sunday
Sunny, with a high near 64. Northwest wind 8 to 14 mph.
Sunday Night
Mostly clear, with a low around 46. Northwest wind 6 to 10 mph.
Monday
Sunny, with a high near 65. Northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 45. Northwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 68. Northwest wind 3 to 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.74°W
Last Update:
4:43 am CDT Aug 20, 2025
Forecast Valid:
5am CDT Aug 20, 2025-6pm CDT Aug 26, 2025
 
Forecast Discussion
 
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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