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.

Fair

70°F

21°C

Humidity 38%
Wind Speed E 10 mph
Barometer 29.64 in
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 9 Mar 4:15 pm CDT
Extended Forecast for

Denison IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. East wind around 9 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Calm wind becoming east northeast around 6 mph after midnight.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Northeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 33. North northeast wind around 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of snow before 10am, then a slight chance of rain between 10am and 1pm. Partly sunny, with a high near 48. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 60. Windy.

    High: 60 °F

    Partly Sunny
    and Windy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain

  • Friday

    Friday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 69. East wind around 9 mph.
Tonight
Mostly clear, with a low around 38. Calm wind becoming east northeast around 6 mph after midnight.
Tuesday
Mostly sunny, with a high near 60. Northeast wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 33. North northeast wind around 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of snow before 10am, then a slight chance of rain between 10am and 1pm. Partly sunny, with a high near 48. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 27.
Thursday
Partly sunny, with a high near 60. Windy.
Thursday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 32.
Friday
Mostly cloudy, with a high near 50.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 39. Windy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
4:11 pm CDT Mar 9, 2026
Forecast Valid:
4pm CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
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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