Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

86°F

30°C

Humidity 18%
Wind Speed S 10 mph
Barometer 29.57 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Mar 6:55 pm CDT
Extended Forecast for

Denison IA

Red Flag Warning March 21, 07:20pm until March 21, 10:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning March 21, 07:20pm until March 21, 10:00pm

    NOW until 10:00pm Sat

    Red Flag Warning

  • Tonight

    Low: 44 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 55. Windy, with a north wind 18 to 22 mph, with gusts as high as 36 mph.

    High: 55 °F

    Decreasing
    Clouds and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. North wind 6 to 11 mph becoming light northeast  in the evening. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 55. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. South wind around 7 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 44. Breezy, with a south southwest wind 7 to 12 mph becoming north northeast 15 to 20 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 55. Windy, with a north wind 18 to 22 mph, with gusts as high as 36 mph.
Sunday Night
Mostly clear, with a low around 29. North wind 6 to 11 mph becoming light northeast in the evening. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 55. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 37. South wind around 7 mph.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 65. Breezy.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 52.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
6:06 pm CDT Mar 21, 2026
7pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
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