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 with Haze

72°F

22°C

Humidity 25%
Wind Speed NW 14 G 22 mph
Barometer 29.83 in
Dewpoint 34°F (1°C)
Visibility 4.00 mi
Last update 3 May 2:35 pm CDT
Extended Forecast for

Denison IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Northwest wind around 14 mph, with gusts as high as 22 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Northwest wind around 6 mph becoming calm.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between 4pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 77. South southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Increasing clouds, with a low around 43. North wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 58. North northeast wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 58 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Northwest wind around 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 47. Northwest wind around 6 mph becoming calm.
Monday
A slight chance of showers between 4pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 77. South southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Increasing clouds, with a low around 43. North wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tuesday
A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 58. North northeast wind 5 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
2:32 pm CDT May 3, 2026
Forecast Valid:
3pm CDT May 3, 2026-6pm CDT May 9, 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