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.

Light Rain

57°F

14°C

Humidity 88%
Wind Speed SE 15 G 22 mph
Barometer 30.09 in
Dewpoint 54°F (12°C)
Visibility 5.00 mi
Last update 14 Sep 6:35 am CDT
Extended Forecast for

3 Miles SW Denison IA

  • Today

    Today: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 80. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Breezy.
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with a south wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 61 °F

    Heavy Rain
    and Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 70. Light north wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 55. Calm wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 68. East wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 80. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with a south wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tuesday
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 70. Light north wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 55. Calm wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 68. East wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 75.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Friday Night
Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 73.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Denison IA
 41.98°N 95.38°W
Last Update:
6:11 am CDT Sep 14, 2026
Forecast Valid:
6am CDT Sep 14, 2026-6pm CDT Sep 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation