National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 64. Light and variable wind becoming east around 6 mph after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 75. North wind 8 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. North wind 6 to 9 mph becoming west after midnight. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. West wind 6 to 9 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Southwest wind 7 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 86 °F

    Slight Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. Breezy, with a south wind 14 to 18 mph, with gusts as high as 28 mph.

    Low: 74 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 92. Breezy, with a south wind around 18 mph, with gusts as high as 28 mph.

    High: 92 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Breezy, with a south wind around 16 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 64. Light and variable wind becoming east around 6 mph after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 75. North wind 8 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. North wind 6 to 9 mph becoming west after midnight. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 82. West wind 6 to 9 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Southwest wind 7 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 74. Breezy, with a south wind 14 to 18 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 92. Breezy, with a south wind around 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 75. Breezy, with a south wind around 16 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 90. Breezy, with a south wind 16 to 18 mph, with gusts as high as 29 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind around 15 mph, with gusts as high as 25 mph.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89. Southwest wind around 14 mph, with gusts as high as 22 mph.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. South wind around 10 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 84. Southwest wind around 10 mph. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.74°W
Last Update:
10:59 pm CDT Jun 17, 2025
Forecast Valid:
11pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025
 
Forecast Discussion
 
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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