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.

A Few Clouds

N/A

Humidity NA
Wind Speed Vrbl 7 G 13 mph
Barometer 29.97 in
Dewpoint N/A
Visibility 10.00 mi
Last update 3 Aug 2:55 pm CDT
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: Mostly clear, with a low around 64. South wind around 9 mph, with gusts as high as 18 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. South wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 57. Northwest wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 72. Light north wind.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76. Light and variable wind.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Light southwest wind.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. South wind 3 to 7 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. South wind around 6 mph.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 64. South wind around 9 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. South wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 57. Northwest wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 72. Light north wind.
Wednesday Night
Partly cloudy, with a low around 53. Calm wind.
Thursday
Sunny, with a high near 76. Light and variable wind.
Thursday Night
Mostly clear, with a low around 58. Light southwest wind.
Friday
Sunny, with a high near 79. South wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 62. South wind around 6 mph.
Saturday
Sunny, with a high near 81. South wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66. South wind around 10 mph, with gusts as high as 18 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 82. Southwest wind 9 to 11 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. West wind 6 to 8 mph becoming south in the evening.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 81. South wind around 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
Last Update:
1:26 pm CDT Aug 3, 2026
Forecast Valid:
3pm CDT Aug 3, 2026-6pm CDT Aug 10, 2026
 
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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