National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

52°F

11°C

Humidity 32%
Wind Speed S 8 mph
Barometer 29.89 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 15 Feb 6:15 pm CST
Extended Forecast for

Denison IA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 42. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Partly Cloudy
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. South southwest wind 5 to 8 mph becoming southeast in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. Calm wind becoming east southeast 5 to 8 mph after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 68. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 68 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 41. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.

    Low: 41 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 58. Breezy.

    High: 58 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 43. Breezy. Chance of precipitation is 30%.

    High: 43 °F

    Chance Snow
    then Chance
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 42. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Washington's Birthday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. South southwest wind 5 to 8 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 43. Calm wind becoming east southeast 5 to 8 mph after midnight.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 41. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.
Wednesday
Sunny, with a high near 58. Breezy.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 43. Breezy. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 33.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 35.
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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:
5:26 pm CST Feb 15, 2026
Forecast Valid:
6pm CST Feb 15, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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Chance of Precipitation