DENISON, IA 51442 Weather Forecast & Current Conditions

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DENISON, IA
Current Weather

9:15 PM CDT AUG 15, 2026
Clear
75°F
Feels Like: 75°F
Dewpoint: 75°F
Rel. Hum.: 100%
Visibility: 7 miles
Wind: Calm
Pressure: 30.05 inches
Last 72 hours

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DENISON, IA 51442
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 60s. Northwest winds around 5 mph. Chance of rain 40 percent.
SUNDAY
Mostly sunny. Humid with highs in the upper 70s. North winds 5 to 10 mph.
SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. Northwest winds around 5 mph in the evening, becoming light and variable.
MONDAY
Mostly sunny. Humid with highs around 80. Southwest winds around 5 mph.
MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 60s. Southwest winds around 5 mph. Chance of rain 50 percent.
TUESDAY
Partly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs around 80. Chance of rain 70 percent.
TUESDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 70 percent.
WEDNESDAY
Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.
WEDNESDAY NIGHT
Mostly cloudy. Lows in the mid 50s.
THURSDAY
Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the upper 50s. Chance of rain 30 percent.
FRIDAY
Partly sunny with a slight chance of showers in the morning, then sunny in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent.

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 AM EDT  8/15/2026
Saturday
15 AUG 2026
DENISON, IA 51442 weather forecast Day 1, 12 hours 1 PM 80° 85° Mostly Cloudy 63%
RAIN
***
0% Thunder
( 37% severe)
WSW   3 85% 75°
High 81° DENISON, IA 51442 weather forecast Day 1, 15 hours 4 PM 80° 85° Mostly Cloudy WSW   5 88% 76°
Mostly Cloudy

Rain Likely

DENISON, IA 51442 weather forecast Day 1, 18 hours 7 PM 77° 78° Mostly Cloudy 24%
RAIN
.1–.25 in
0% Thunder
( 27% severe)
NNW   3 97% 76°
DENISON, IA 51442 weather forecast Day 1, 21 hours 10 PM 73° 73° Mostly Cloudy   CALM 100% 73°
Sunday
16 AUG 2026
DENISON, IA 51442 weather forecast Day 2, 0 hours 1 AM 71° 71° Mostly Cloudy 16%
RAIN
***
0% Thunder
( 26% severe)
  CALM 100% 71°
Low 66° DENISON, IA 51442 weather forecast Day 2, 3 hours 4 AM 70° 70° Partly Cloudy N   3 100% 70°
High 77° DENISON, IA 51442 weather forecast Day 2, 6 hours 7 AM 68° 68° Mostly Cloudy 8%

0% Thunder
( 8% severe)
N   6 100% 68°

Mostly Cloudy



DENISON, IA 51442 weather forecast Day 2, 9 hours 10 AM 71° 71° Mostly Cloudy NA   9 93% 69°
DENISON, IA 51442 weather forecast Day 2, 12 hours 1 PM 75° 75° Partly Cloudy 3%

0% Thunder
( 7% severe)
NNW   10 79% 68°
DENISON, IA 51442 weather forecast Day 2, 15 hours 4 PM 76° 77° Partly Cloudy NNW   9 76% 68°
DENISON, IA 51442 weather forecast Day 2, 18 hours 7 PM 74° 74° Clear 0%

0% Thunder
( 9% severe)
NNW   6 84% 69°
DENISON, IA 51442 weather forecast Day 2, 21 hours 10 PM 67° 67° Clear   CALM 97% 66°
Monday
17 AUG 2026
DENISON, IA 51442 weather forecast Day 3, 0 hours 1 AM 63° 64° Partly Cloudy 0%

0% Thunder
( 5% severe)
  CALM 100% 63°
Low 58° DENISON, IA 51442 weather forecast Day 3, 3 hours 4 AM 61° 62° Mostly Cloudy   CALM 100% 61°
High 80° DENISON, IA 51442 weather forecast Day 3, 6 hours 7 AM 60° 61° Mostly Cloudy 0%

0% Thunder
( 4% severe)
  CALM 100% 60°

Partly Cloudy



DENISON, IA 51442 weather forecast Day 3, 9 hours 10 AM 72° 72° Partly Cloudy   CALM 81% 66°
DENISON, IA 51442 weather forecast Day 3, 15 hours 1 PM 77° 79° Partly Cloudy 3%

0% Thunder
( 9% severe)
SW   6 69% 66°
DENISON, IA 51442 weather forecast Day 3, 18 hours 4 PM 79° 81° Partly Cloudy SSW   7 69% 68°
DENISON, IA 51442 weather forecast Day 3, 21 hours 7 PM 77° 79° Partly Cloudy     S   5 79% 70°

DENISON, IA extended weather forecast

Tuesday
18 AUG 2026
Wednesday
19 AUG 2026
Thursday
20 AUG 2026
Friday
21 AUG 2026
Saturday
22 AUG 2026
Low 64° Low 61° Low 63° Low 60° Low 63°
High 78° High 81° High 80° High 81° High 84°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
74% Rain
Overcast
46% Rain
Overcast
47% Rain
Partly Cloudy
44% Rain
Clear
19% Rain
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