Areas of Heavy to Excessive Rainfall Which May Bring Flooding

An area of thunderstorms and heavy rains may produce flash flooding in the central and southern Plains, specifically southeast Kansas, into the morning. Monsoon moisture will continue to produce areas of heavy rainfall and the potential for flooding and debris flows across the northern Intermountain West. Heavy rain continues across portions of southwest and south-central Alaska. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Partly Cloudy

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 1:35 am CDT
Extended Forecast for

Ossian IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Light southwest wind.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, sunny, with a high near 76. Light and variable wind.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 54. Calm wind becoming east around 5 mph after midnight.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of showers after 1pm.  Mostly cloudy through mid morning, then becoming sunny, with a high near 72. Southeast wind 3 to 5 mph.

    High: 72 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. Light southeast wind.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Southeast wind 3 to 5 mph.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. Light east wind.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 70. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Light southwest wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 76. Light and variable wind.
Thursday Night
Increasing clouds, with a low around 54. Calm wind becoming east around 5 mph after midnight.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 72. Southeast wind 3 to 5 mph.
Friday Night
Mostly cloudy, with a low around 55. Light southeast wind.
Saturday
Partly sunny, with a high near 68. Southeast wind 3 to 5 mph.
Saturday Night
Mostly cloudy, with a low around 53. Light east wind.
Sunday
Mostly sunny, with a high near 70. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 53. Calm wind.
Labor Day
Mostly sunny, with a high near 72. Southeast wind 3 to 6 mph.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54. Southeast wind 3 to 5 mph.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 74. South wind around 6 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56. Light and variable wind becoming south around 6 mph in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. West wind 7 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Ossian IA
 43.15°N 91.77°W
1:44 am CDT Aug 28, 2025
1am CDT Aug 28, 2025-6pm CDT Sep 3, 2025
 
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Additional Resources

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Hourly Weather Forecast

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