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.

Fair

21°F

-6°C

Humidity 80%
Wind Speed Calm
Barometer 30.64 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 28 Mar 2:35 am CDT
Extended Forecast for

Denison IA

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

  • Overnight

    Overnight: Clear, with a steady temperature around 24. Southeast wind 3 to 5 mph.

    Low: 24 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 60. Windy, with a south southwest wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 60 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Breezy, with a south wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Southeast wind 3 to 6 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 59. Breezy.

    High: 59 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Blustery.

    Low: 27 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

Overnight
Clear, with a steady temperature around 24. Southeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 60. Windy, with a south southwest wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.
Saturday Night
Partly cloudy, with a low around 39. Breezy, with a south wind 13 to 17 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 45. Southeast wind 3 to 6 mph.
Monday
Partly sunny, with a high near 81.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 59. Breezy.
Tuesday Night
Mostly cloudy, with a low around 27. Blustery.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 30.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 53. Breezy.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 37. Breezy.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 58. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
2:36 am CDT Mar 28, 2026
Forecast Valid:
2am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation