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

70°F

21°C

Humidity 46%
Wind Speed E 5 mph
Barometer 29.95 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 29 May 10:35 pm CDT
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. East wind around 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 79. East wind 8 to 15 mph.

    High: 79 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. East wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 75. Southeast wind around 10 mph, with gusts as high as 18 mph.

    High: 75 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Southeast wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 80. East wind around 7 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. East wind 3 to 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southeast wind around 7 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Southeast wind around 6 mph.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 59. East wind around 5 mph.
Saturday
Mostly cloudy, with a high near 79. East wind 8 to 15 mph.
Saturday Night
Mostly cloudy, with a low around 56. East wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 75. Southeast wind around 10 mph, with gusts as high as 18 mph.
Sunday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Southeast wind 5 to 9 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 80. East wind around 7 mph.
Monday Night
Partly cloudy, with a low around 56. East wind 3 to 6 mph.
Tuesday
Sunny, with a high near 82. Southeast wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 84. South wind 6 to 9 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind around 8 mph.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southwest wind 8 to 13 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 8 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 8 to 10 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
Last Update:
5:57 pm CDT May 29, 2026
Forecast Valid:
10pm CDT May 29, 2026-6pm CDT Jun 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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