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

88°F

31°C

Humidity 59%
Wind Speed S 12 G 21 mph
Barometer 29.89 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 2 Sep 1:55 pm CDT
Extended Forecast for

Denison IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 3pm. Sunny, with a high near 91. South southwest wind 11 to 13 mph.

    High: 91 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. South wind 3 to 7 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 91. South southwest wind 7 to 11 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South wind around 7 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. South wind 5 to 8 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 3pm. Sunny, with a high near 91. South southwest wind 11 to 13 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. South wind 3 to 7 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 91. South southwest wind 7 to 11 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 73. South wind around 7 mph.
Friday
Sunny, with a high near 92. South wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 88.
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:
1:26 pm CDT Sep 2, 2026
Forecast Valid:
2pm CDT Sep 2, 2026-6pm CDT Sep 8, 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