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.

Partly Cloudy

79°F

26°C

Humidity 65%
Wind Speed N 16 G 23 mph
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 1 Aug 12:55 pm CDT
Extended Forecast for

Denison IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. North wind around 14 mph, with gusts as high as 23 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. North northeast wind 5 to 9 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Light southeast wind.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Light south southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 81. North wind around 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 59. North northeast wind 5 to 9 mph becoming calm in the evening.
Sunday
Sunny, with a high near 82. Light and variable wind.
Sunday Night
Mostly clear, with a low around 60. Light southeast wind.
Monday
Sunny, with a high near 84. Light south southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Tuesday Night
Showers and possibly a thunderstorm. Low around 60. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Thursday
Partly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
12:12 pm CDT Aug 1, 2026
Forecast Valid:
1pm CDT Aug 1, 2026-6pm CDT Aug 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

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