DENISON, IA 51442 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


DENISON, IA
Current Weather

9:35 AM CDT AUG 20, 2026
Clear
72°F
Feels Like: 72°F
Dewpoint: 68°F
Rel. Hum.: 87%
Visibility: 10 miles
Wind: Calm
Pressure: 30.08 inches
Last 72 hours

Local Area Snow Depth

Iowa Current Weather

Iowa MOS Forecast Weather


Weather Map


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2026 Hurricanes

DENISON, IA 51442
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Areas of fog this morning. Sunny. Highs around 80. South winds 5 to 10 mph.
TONIGHT
Mostly clear. Humid with lows in the mid 60s. Southwest winds around 5 mph.
FRIDAY
Sunny with highs in the lower 80s. Southwest winds around 5 mph, becoming northwest in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the lower 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.
SATURDAY
Sunny. Highs in the upper 70s. North winds around 5 mph.
SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
SUNDAY
Partly sunny. Highs in the mid 70s.
SUNDAY NIGHT
Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 40 percent.
MONDAY
Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
MONDAY NIGHT
Mostly clear in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent.
TUESDAY
Partly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 20 percent.
WEDNESDAY
Mostly sunny. Highs around 80.

Visible Weather Satellite
DENISON, IA 51442
Infrared Weather Satellite
DENISON, IA 51442
NEXRAD Weather Radar
DENISON, IA 51442

DENISON, IA 3 hourly weather forecast

weather forecast created  8:00 PM EDT  8/19/2026
Thursday
20 AUG 2026
DENISON, IA 51442 weather forecast Day 1, 0 hours 1 AM 62° 63° Clear 1%

0% Thunder
( 4% severe)
  CALM 100% 62°
Low 58° DENISON, IA 51442 weather forecast Day 1, 3 hours 4 AM 60° 61° Partly Cloudy   CALM 100% 60°
High 80° DENISON, IA 51442 weather forecast Day 1, 6 hours 7 AM 59° 60° Partly Cloudy 1%

0% Thunder
( 2% severe)
  CALM 100% 59°

Partly Cloudy



DENISON, IA 51442 weather forecast Day 1, 9 hours 10 AM 70° 70° Clear SSW   6 90% 67°
DENISON, IA 51442 weather forecast Day 1, 12 hours 1 PM 77° 79° Clear 2%

0% Thunder
( 11% severe)
SSW   9 71% 67°
DENISON, IA 51442 weather forecast Day 1, 15 hours 4 PM 80° 83° Partly Cloudy SSW   9 67% 68°
DENISON, IA 51442 weather forecast Day 1, 18 hours 7 PM 78° 80° Partly Cloudy 7%

0% Thunder
( 22% severe)
SSW   7 76% 70°
DENISON, IA 51442 weather forecast Day 1, 21 hours 10 PM 70° 70° Clear S   5 93% 68°
Friday
21 AUG 2026
DENISON, IA 51442 weather forecast Day 2, 0 hours 1 AM 67° 67° Clear 4%

0% Thunder
( 16% severe)
SSW   5 97% 66°
Low 64° DENISON, IA 51442 weather forecast Day 2, 3 hours 4 AM 66° 66° Clear SW   5 100% 66°
High 83° DENISON, IA 51442 weather forecast Day 2, 6 hours 7 AM 64° 65° Partly Cloudy 7%

0% Thunder
( 10% severe)
SSW   3 100% 64°

Clear



DENISON, IA 51442 weather forecast Day 2, 9 hours 10 AM 74° 74° Clear W   5 90% 71°
DENISON, IA 51442 weather forecast Day 2, 12 hours 1 PM 82° 86° Clear 14%
RAIN
<.01 in
0% Thunder
( 16% severe)
WNW   5 67% 70°
DENISON, IA 51442 weather forecast Day 2, 15 hours 4 PM 82° 85° Clear NW   5 63% 68°
DENISON, IA 51442 weather forecast Day 2, 18 hours 7 PM 79° 82° Clear 29%
RAIN
<.01 in
0% Thunder
( 28% severe)
  CALM 77% 71°
DENISON, IA 51442 weather forecast Day 2, 21 hours 10 PM 70° 70° Partly Cloudy   CALM 93% 68°

DENISON, IA extended weather forecast

Saturday
22 AUG 2026
Sunday
23 AUG 2026
Monday
24 AUG 2026
Tuesday
25 AUG 2026
Wednesday
26 AUG 2026
Low 59° Low 55° Low 59° Low 65° Low 62°
High 83° High 77° High 82° High 86° High 86°
DENISON, IA 51442 weather forecast Day 3 DENISON, IA 51442 weather forecast Day 4 DENISON, IA 51442 weather forecast Day 5 DENISON, IA 51442 weather forecast Day 6 DENISON, IA 51442 weather forecast Day 7
Partly Cloudy
27% Rain
Partly Cloudy
20% Rain
Mostly Cloudy
36% Rain
Partly Cloudy
22% Rain
Partly Cloudy
25% Rain
SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Denison, IA
Denison, IA snow
Denison, IA radar
IA map
-or-
-or-
-or-
 
51442
51442 snow
51442 radar
 
-or-
-or-
 
 
IA
IA snow
 
 
Copyright © 2026 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions