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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed E 13 G 20 mph
Barometer 29.63 in
Dewpoint 39°F (4°C)
Visibility 5.00 mi
Wind Chill31°F (-1°C)
Last update 2 Apr 5:15 am CDT
Extended Forecast for

Denison IA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 39. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 3pm, then a chance of showers between 3pm and 4pm. Patchy fog between 8am and 11am. High near 49. Breezy, with an east northeast wind 13 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 49 °F

    Showers and
    Patchy Fog
    then Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 51. East wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 51 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy, with a low around 29. West northwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 29 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 45. Windy.

    High: 45 °F

    Windy. Mostly
    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Blustery.

    Low: 25 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 39. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 3pm, then a chance of showers between 3pm and 4pm. Patchy fog between 8am and 11am. High near 49. Breezy, with an east northeast wind 13 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Mostly cloudy, with a low around 31. Northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 18 mph.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 51. East wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy, with a low around 29. West northwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 45. Windy.
Saturday Night
Partly cloudy, with a low around 25. Blustery.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 31.
Monday
Mostly cloudy, with a high near 51.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 52. Breezy.
Tuesday Night
Mostly cloudy, with a low around 38. Breezy.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 71. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
3:37 am CDT Apr 2, 2026
Forecast Valid:
5am CDT Apr 2, 2026-6pm CDT Apr 8, 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