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.

Overcast

41°F

5°C

Humidity 57%
Wind Speed SW 9 mph
Barometer 29.82 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 8 Mar 4:55 am CDT
Extended Forecast for

Denison IA

  • Today

    Today: Sunny, with a high near 67. Breezy, with a southwest wind 8 to 18 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 41. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. South southwest wind 7 to 9 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South southwest wind 5 to 7 mph becoming east in the evening.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. North northeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow before 1pm. Partly sunny, with a high near 45. Breezy. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Thursday

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

    High: 60 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 67. Breezy, with a southwest wind 8 to 18 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 41. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 69. South southwest wind 7 to 9 mph.
Monday Night
Mostly clear, with a low around 40. South southwest wind 5 to 7 mph becoming east in the evening.
Tuesday
Partly sunny, with a high near 61. North northeast wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of rain and snow before 1pm. Partly sunny, with a high near 45. Breezy. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 25.
Thursday
Partly sunny, with a high near 60. Breezy.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
12:27 am CST Mar 8, 2026
Forecast Valid:
5am CDT Mar 8, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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