DENISON, IA 51442 Weather Forecast & Current Conditions
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  51442 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

DENISON, IA
Current Weather
9:55 AM CDT SEP 3, 2026
Clear
77°F
Feels Like: 79°F
Dewpoint: 70°F
Rel. Hum.: 79%
Visibility: 10 miles
Wind: S at 9 mph
Pressure: 29.87 inches
Last 72 hours

Local Area Snow Depth

Iowa Current Weather

Iowa MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  51442 WEATHER FORECAST
10-Day model forecast maps
2026 Hurricanes

DENISON, IA 51442
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TODAY
Partly sunny early this morning, then clearing. Showers likely with a slight chance of thunderstorms early this morning, then a slight chance of showers this afternoon. Highs in the lower 90s. South winds 10 to 15 mph. Chance of rain 70 percent. Heat index values up to 103 this afternoon.
TONIGHT
Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 102 early in the evening.
FRIDAY
Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 102 in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. South winds around 5 mph. Heat index values up to 100 early in the evening.
SATURDAY
Mostly sunny. Humid with highs in the lower 90s. South winds around 5 mph. Heat index values up to 100 in the afternoon.
SATURDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows around 70. Chance of rain 20 percent.
SUNDAY
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
SUNDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent.
LABOR DAY
Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent.
MONDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.
TUESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 50 percent.
WEDNESDAY
Mostly sunny with a 20 percent chance of showers. Highs in the mid 80s.

  51442 WEATHER SATELLITE LOOPS
Visible Weather Satellite
DENISON, IA 51442
Infrared Weather Satellite
DENISON, IA 51442
  51442 WEATHER RADAR LOOP
NEXRAD Weather Radar
DENISON, IA 51442
 MOS COMPUTER WEATHER FORECAST

DENISON, IA 3 hourly weather forecast
weather forecast created  8:00 PM EDT  9/ 2/2026
Thursday
3 SEP 2026		 DENISON, IA 51442 weather forecast Day 1, 0 hours 1 AM 78° 80° Clear 18%
RAIN
.25–.5 in		 0% Thunder
( 27% severe)		 S   10 67% 66°
Low 74° DENISON, IA 51442 weather forecast Day 1, 3 hours 4 AM 77° 79° Partly Cloudy S   10 69% 66°
High 91° DENISON, IA 51442 weather forecast Day 1, 6 hours 7 AM 75° 75° Mostly Cloudy 31%
RAIN
.01–.1 in		 0% Thunder
( 25% severe)		 SSW   10 76% 67°

Decreasing Clouds

Chance of Rain

 DENISON, IA 51442 weather forecast Day 1, 9 hours 10 AM 79° 82° Partly Cloudy S   12 74% 70°
DENISON, IA 51442 weather forecast Day 1, 12 hours 1 PM 87° 92° Partly Cloudy 2%

 0% Thunder
( 12% severe)		 S   14 57% 70°
DENISON, IA 51442 weather forecast Day 1, 15 hours 4 PM 91° 98° Clear SSW   14 52% 71°
DENISON, IA 51442 weather forecast Day 1, 18 hours 7 PM 88° 95° Clear 2%

 0% Thunder
( 17% severe)		 S   9 59% 72°
DENISON, IA 51442 weather forecast Day 1, 21 hours 10 PM 81° 84° Clear S   10 69% 70°
Friday
4 SEP 2026		 DENISON, IA 51442 weather forecast Day 2, 0 hours 1 AM 79° 81° Clear 14%
RAIN
<.01 in		 0% Thunder
( 28% severe)		 S   10 69% 68°
Low 75° DENISON, IA 51442 weather forecast Day 2, 3 hours 4 AM 77° 79° Clear SSW   9 74% 68°
High 92° DENISON, IA 51442 weather forecast Day 2, 6 hours 7 AM 75° 75° Clear 2%

 0% Thunder
( 13% severe)		 S   8 79% 68°

Clear



 DENISON, IA 51442 weather forecast Day 2, 9 hours 10 AM 81° 85° Clear SSW   12 74% 72°
DENISON, IA 51442 weather forecast Day 2, 12 hours 1 PM 88° 95° Clear 0%

 0% Thunder
( 15% severe)		 SSW   12 59% 72°
DENISON, IA 51442 weather forecast Day 2, 15 hours 4 PM 91° 98° Clear SSW   9 52% 71°
DENISON, IA 51442 weather forecast Day 2, 18 hours 7 PM 88° 95° Partly Cloudy 1%

 0% Thunder
( 23% severe)		 SSW   7 59% 72°
DENISON, IA 51442 weather forecast Day 2, 21 hours 10 PM 79° 82° Partly Cloudy SSE   6 79% 72°

DENISON, IA extended weather forecast
Saturday
5 SEP 2026		 Sunday
6 SEP 2026		 Monday
7 SEP 2026		 Tuesday
8 SEP 2026		 Wednesday
9 SEP 2026
Low 66° Low 69° Low 68° Low 71° Low 67°
High 98° High 89° High 91° High 96° High 88°
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
Clear
19% Rain		 Partly Cloudy
28% Rain		 Partly Cloudy
28% Rain		 Partly Cloudy
22% Rain		 Partly Cloudy
32% Rain
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