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Winter Storm Warning for much of Iowa from later Friday through early Sunday morning
National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Partly Cloudy

27°F

-3°C

Humidity	64%
Wind Speed	S 15 mph
Barometer	30.29 in
Dewpoint	16°F (-9°C)
Visibility	7.00 mi
Wind Chill	15°F (-9°C)
Last update	28 Nov 1:35 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Denison IA

Winter Storm Warning November 28, 03:00pm until November 30, 06:00am

Click here for hazard details and duration

Winter Storm Warning

This Afternoon
High: 27 °F
Snow
Tonight
Low: 25 °F
Wintry Mix
Saturday
High: 27 °F
Heavy Snow
and Blustery
Saturday Night
Low: 8 °F
Chance Snow
and Blustery
then Mostly
Cloudy
Sunday
High: 15 °F
Partly Sunny
Sunday Night
Low: 2 °F
Mostly Cloudy
Monday
High: 18 °F
Slight Chance
Snow
Monday Night
Low: 7 °F
Mostly Cloudy
Tuesday
High: 25 °F
Partly Sunny

Detailed Forecast

This Afternoon

Snow, mainly after 3pm. High near 27. East southeast wind 8 to 10 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

Tonight

Snow, possibly mixed with freezing rain before midnight, then snow, possibly mixed with sleet between midnight and 1am, then snow after 1am. Steady temperature around 25. East southeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 2 to 4 inches possible.

Saturday

Snow, mainly before 5pm. The snow could be heavy at times. High near 27. Blustery, with an east northeast wind 10 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Saturday Night

A 30 percent chance of snow before midnight. Cloudy, with a low around 8. Wind chill values as low as -5. Blustery, with a northwest wind 10 to 16 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

Sunday

Partly sunny, with a high near 15. Northwest wind 5 to 10 mph becoming light in the afternoon.

Sunday Night

Mostly cloudy, with a low around 2.

Monday

A 20 percent chance of snow. Mostly cloudy, with a high near 18.

Monday Night

Mostly cloudy, with a low around 7.

Tuesday

Partly sunny, with a high near 25.

Tuesday Night

Mostly cloudy, with a low around 16.