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

86°F

30°C

Humidity 52%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 66°F (19°C)
Visibility NA
Heat Index88°F (31°C)
Last update 6 Jul 3:15 pm CDT
Extended Forecast for

Denison IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. South southeast wind around 6 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. South southeast wind 5 to 7 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the morning.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. South wind 3 to 6 mph.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southwest wind 6 to 9 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 84.

    High: 84 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. South southeast wind around 6 mph.
Tonight
Mostly clear, with a low around 65. South southeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 68. South wind 3 to 6 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southwest wind 6 to 9 mph.
Wednesday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 84.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Friday
Partly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
1:27 pm CDT Jul 6, 2026
Forecast Valid:
3pm CDT Jul 6, 2026-6pm CDT Jul 12, 2026
 
Forecast Discussion
 
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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