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

52°F

11°C

Humidity 100%
Wind Speed NE 7 G 14 mph
Barometer 29.74 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 15 Apr 4:15 am CDT
Extended Forecast for

Denison IA

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Some of the storms could be severe. Partly sunny, with a high near 71. East northeast wind 5 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Slight Chance
    T-storms then
    Severe
    Thunderstorms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78. Light west southwest wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 56. South wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy, with a south southeast wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of rain showers before 4am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance
    T-storms and
    Breezy then
    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow showers before 1pm, then a slight chance of snow showers. Mostly sunny, with a high near 49. Breezy. Chance of precipitation is 30%.

    High: 49 °F

    Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Blustery.

    Low: 29 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Some of the storms could be severe. Partly sunny, with a high near 71. East northeast wind 5 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 78. Light west southwest wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 56. South wind 9 to 13 mph, with gusts as high as 23 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy, with a south southeast wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of rain showers before 4am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain and snow showers before 1pm, then a slight chance of snow showers. Mostly sunny, with a high near 49. Breezy. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 29. Blustery.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 71. Breezy.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
1:26 am CDT Apr 15, 2026
Forecast Valid:
4am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation