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.

Fair and Breezy

41°F

5°C

Humidity 57%
Wind Speed S 21 G 29 mph
Barometer 30.01 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Mar 11:15 am CDT
Extended Forecast for

Denison IA

Red Flag Warning March 12, 12:00pm until March 12, 09:00pm
High Wind Warning March 12, 10:00pm until March 13, 07:00am
Click here for hazard details and duration
Red Flag Warning
High Wind Warning

  • Today

    Today: Partly sunny, with a high near 61. Windy, with a southwest wind 20 to 28 mph, with gusts as high as 40 mph.

    High: 61 °F

    Partly Sunny
    and Windy

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 29. Windy, with a south southwest wind 20 to 25 mph becoming west northwest 26 to 31 mph after midnight. Winds could gust as high as 49 mph.

    Low: 29 °F

    Windy. Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 45. Windy, with a northwest wind 14 to 23 mph, with gusts as high as 38 mph.

    High: 45 °F

    Increasing
    Clouds and
    Windy

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 28. Calm wind becoming east around 6 mph after midnight. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 49. East southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then rain and snow. Low around 26. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 26 °F

    Chance Rain
    then
    Rain/Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain, becoming all snow after 1pm. High near 37. Windy. Chance of precipitation is 80%.

    High: 37 °F

    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before 1am. Partly cloudy, with a low around 3. Windy.

    Low: 3 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 61. Windy, with a southwest wind 20 to 28 mph, with gusts as high as 40 mph.
Tonight
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 29. Windy, with a south southwest wind 20 to 25 mph becoming west northwest 26 to 31 mph after midnight. Winds could gust as high as 49 mph.
Friday
Increasing clouds, with a high near 45. Windy, with a northwest wind 14 to 23 mph, with gusts as high as 38 mph.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28. Calm wind becoming east around 6 mph after midnight. New snow accumulation of less than a half inch possible.
Saturday
Mostly cloudy, with a high near 49. East southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A chance of rain before 1am, then rain and snow. Low around 26. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Snow, possibly mixed with rain, becoming all snow after 1pm. High near 37. Windy. Chance of precipitation is 80%.
Sunday Night
A 20 percent chance of snow before 1am. Partly cloudy, with a low around 3. Windy.
Monday
Sunny, with a high near 25.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 52.
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:
10:07 am CDT Mar 12, 2026
Forecast Valid:
11am CDT Mar 12, 2026-6pm CDT Mar 18, 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