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

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Overcast

34°F

1°C

Humidity 93%
Wind Speed N 18 G 24 mph
Barometer 30.37 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 27 Mar 12:35 am CDT
Extended Forecast for

Denison IA

Fire Weather Watch March 28, 10:00am until March 28, 09:00pm
Red Flag Warning March 27, 12:00pm until March 27, 09:00pm
Click here for hazard details and duration
Fire Weather Watch
Red Flag Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. Blustery, with a north wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Mostly Cloudy
    and Blustery

  • Friday

    Friday: Sunny, with a high near 50. Breezy, with a north northwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 50 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. North northwest wind 6 to 11 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Windy, with a south southwest wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 58 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. South wind 9 to 15 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. Blustery, with a north wind 13 to 17 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 50. Breezy, with a north northwest wind 10 to 16 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 24. North northwest wind 6 to 11 mph becoming light and variable. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 58. Windy, with a south southwest wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.
Saturday Night
Mostly cloudy, with a low around 40. South wind 9 to 15 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 45.
Monday
Partly sunny, with a high near 79.
Monday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 76. Breezy.
Tuesday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 41.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 63.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
10:47 pm CDT Mar 26, 2026
Forecast Valid:
12am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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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