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

81°F

27°C

Humidity 70%
Wind Speed Vrbl 6 mph
Barometer 30.09 in
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Heat Index85°F (29°C)
Last update 19 Aug 12:55 pm CDT
Extended Forecast for

4 Miles S Ossian IA

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. North wind around 6 mph. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog before 4am, then areas of fog after 5am. Otherwise, partly cloudy, with a low around 65. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Areas Fog

  • Wednesday

    Wednesday: Areas of dense fog before 7am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northeast around 6 mph in the morning.

    High: 80 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Light east wind.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Light southeast wind.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the morning.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. Northwest wind around 5 mph.

    Low: 56 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 72. Northwest wind 5 to 10 mph.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. North wind around 6 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog before 4am, then areas of fog after 5am. Otherwise, partly cloudy, with a low around 65. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Areas of dense fog before 7am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northeast around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 61. Light east wind.
Thursday
Sunny, with a high near 78. Light southeast wind.
Thursday Night
Mostly clear, with a low around 60. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 72. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 51. Northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 68. Northwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 48. Northwest wind 5 to 7 mph.
Monday
Sunny, with a high near 68. Northwest wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Ossian IA
 43.08°N 91.77°W
Last Update:
1:14 pm CDT Aug 19, 2025
Forecast Valid:
1pm CDT Aug 19, 2025-6pm CDT Aug 25, 2025
 
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