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

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Partly Cloudy

12°F

-11°C

Humidity 67%
Wind Speed N 8 mph
Barometer 30.67 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 22 Feb 10:35 pm CST
Extended Forecast for

Denison IA

  • Tonight

    Tonight: Mostly clear, with a low around -3. North wind 5 to 7 mph becoming calm after midnight.

    Low: -3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 24. Wind chill values as low as zero. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a temperature falling to near 14 by 8pm, then rising to around 22 during the remainder of the night. Wind chill values as low as zero. South wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 14 °F⇑

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 46. South southwest wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 46 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow after noon. Partly sunny, with a high near 38. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.

    Low: 18 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around -3. North wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny, with a high near 24. Wind chill values as low as zero. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a temperature falling to near 14 by 8pm, then rising to around 22 during the remainder of the night. Wind chill values as low as zero. South wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday
Mostly cloudy, with a high near 46. South southwest wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
A chance of rain and snow after noon. Partly sunny, with a high near 38. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.
Thursday
Sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 28.
Friday
Sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
10:31 pm CST Feb 22, 2026
Forecast Valid:
10pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
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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