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

66°F

19°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.93 in
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Last update 26 Aug 3:35 am CDT
Extended Forecast for

Ossian IA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 65. West wind around 6 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Northwest wind 6 to 14 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Northwest wind 3 to 7 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. North wind 3 to 6 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Calm wind becoming south 5 to 8 mph in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 79. Breezy, with a south wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 67 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 65. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 79. Northwest wind 6 to 14 mph.
Wednesday Night
Mostly clear, with a low around 59. Northwest wind 3 to 7 mph.
Thursday
Sunny, with a high near 79. North wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 62. Calm wind becoming south 5 to 8 mph in the evening.
Saturday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 79. Breezy, with a south wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 17 mph, with gusts as high as 26 mph.
Sunday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Breezy, with a south wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind 8 to 13 mph, with gusts as high as 21 mph.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 84. Southwest wind 5 to 7 mph.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 64. Calm wind.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 82. Light south wind.
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Forecast Area
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ABOUT THIS FORECAST

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

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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