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.

Mostly Cloudy

57°F

14°C

Humidity 100%
Wind Speed Vrbl 5 mph
Barometer 29.51 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 18 Jun 1:35 am CDT
Extended Forecast for

Ossian IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 72. Northwest wind around 11 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 51. Northwest wind 5 to 9 mph.

    Low: 51 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 75. Light northwest wind becoming west 5 to 10 mph in the morning.

    High: 75 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 55. West wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 76. Northwest wind around 6 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 56. Light and variable wind.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Partly sunny, with a high near 70. East wind 6 to 11 mph.

    High: 70 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 52. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 72. Northwest wind around 11 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 51. Northwest wind 5 to 9 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 75. Light northwest wind becoming west 5 to 10 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 55. West wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 76. Northwest wind around 6 mph.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 56. Light and variable wind.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 70. East wind 6 to 11 mph.
Sunday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 52. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 72. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56. South wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75. West wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
Last Update:
1:26 am CDT Jun 18, 2026
Forecast Valid:
1am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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