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.

Mostly Cloudy

70°F

21°C

Humidity 94%
Wind Speed S 6 mph
Barometer 29.82 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Jun 8:35 pm CDT
Extended Forecast for

Ossian IA

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Southwest wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 81. Northwest wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. North wind around 6 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. Northeast wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 76 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. North wind 6 to 9 mph becoming west after midnight.

    Low: 58 °F

    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. West wind 7 to 9 mph.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 62. West wind 6 to 8 mph.

    Low: 62 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy, with a south wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 72 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Showers and thunderstorms likely before 3am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Southwest wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 81. Northwest wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. North wind around 6 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. Northeast wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. North wind 6 to 9 mph becoming west after midnight.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. West wind 7 to 9 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 62. West wind 6 to 8 mph.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. South wind 9 to 15 mph, with gusts as high as 23 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy, with a south wind 14 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 90. Southwest wind around 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 73. South wind 11 to 15 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 89. Breezy, with a south wind 15 to 20 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. Breezy, with a south wind 14 to 17 mph, with gusts as high as 25 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southwest wind around 15 mph.
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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:
5:29 pm CDT Jun 16, 2025
Forecast Valid:
8pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation