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

41°F

5°C

Humidity 39%
Wind Speed N 6 mph
Barometer 30.05 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 13 Mar 6:15 pm CDT
Extended Forecast for

Denison IA

Winter Storm Watch March 15, 10:00am until March 16, 10:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. North northwest wind 5 to 8 mph becoming calm.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 52. Breezy, with an east southeast wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 52 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 34. East southeast wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday

    Sunday: Rain, possibly mixed with snow, becoming all snow after 10am. Widespread blowing snow, mainly after 4pm. Temperature falling to around 28 by 5pm. Windy, with a north wind 16 to 21 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 43 °F⇓

    Rain/Snow and
    Patchy
    Blowing Snow
    then Snow and
    Blowing Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Widespread blowing snow, mainly before 7pm. Mostly cloudy, with a low around 3. Windy, with a north northwest wind 25 to 32 mph, with gusts as high as 47 mph. New snow accumulation of less than one inch possible.

    Low: 3 °F

    Chance Snow
    and Blowing
    Snow

  • Monday

    Monday: Sunny, with a high near 19. Windy.

    High: 19 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm. Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. North northwest wind 5 to 8 mph becoming calm.
Saturday
Partly sunny, with a high near 52. Breezy, with an east southeast wind 9 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 34. East southeast wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, possibly mixed with snow, becoming all snow after 10am. Widespread blowing snow, mainly after 4pm. Temperature falling to around 28 by 5pm. Windy, with a north wind 16 to 21 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 30 percent chance of snow before 1am. Widespread blowing snow, mainly before 7pm. Mostly cloudy, with a low around 3. Windy, with a north northwest wind 25 to 32 mph, with gusts as high as 47 mph. New snow accumulation of less than one inch possible.
Monday
Sunny, with a high near 19. Windy.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
A 20 percent chance of snow after 1pm. Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 66.
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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:
6:22 pm CDT Mar 13, 2026
Forecast Valid:
6pm CDT Mar 13, 2026-6pm CDT Mar 20, 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