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

DENISON, IA
Current Weather
5:35 PM CDT MAY 17, 2026
Scattered Clouds
79°F
Feels Like: 82°F
Dewpoint: 73°F
Rel. Hum.: 82%
Visibility:
Wind: S at 23 mph, gusts to 32
Pressure: 29.53 inches
Last 72 hours

Local Area Snow Depth

Iowa Current Weather

Iowa MOS Forecast Weather


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(Automated weather data from NWS/FAA)
  51442 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

DENISON, IA 51442
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. A slight chance of showers and thunderstorms early, then showers with a chance of thunderstorms. Humid with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 35 mph, becoming west 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 90 percent.
MONDAY
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. North winds around 5 mph, becoming east in the afternoon. Chance of rain 70 percent.
MONDAY NIGHT
A chance of thunderstorms. Showers, mainly in the evening. Locally heavy rainfall possible in the evening. Lows in the mid 40s. North winds 10 to 15 mph, becoming northwest after midnight. Chance of rain near 100 percent.
TUESDAY
Mostly cloudy in the morning, then becoming mostly sunny. Highs in the upper 50s. Northwest winds around 15 mph with gusts up to 30 mph.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 30s. North winds 10 to 15 mph, diminishing to around 5 mph after midnight.
WEDNESDAY
Partly sunny. Highs in the lower 60s.
WEDNESDAY NIGHT
Mostly cloudy. Lows in the lower 40s.
THURSDAY
Mostly cloudy. A slight chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 20 percent.
THURSDAY NIGHT
A slight chance of thunderstorms in the evening. Mostly cloudy with a slight chance of showers. Lows in the mid 40s. Chance of rain 20 percent.
FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs around 70. Chance of rain 20 percent.
FRIDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows around 50. Chance of rain 20 percent.
SATURDAY
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent.

  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 AM EDT  5/17/2026
Sunday
17 MAY 2026		 DENISON, IA 51442 weather forecast Day 1, 12 hours 1 PM 78° 80° Mostly Cloudy 19%
RAIN
.01–.1 in		 0% Thunder
( 37% severe)		 S   24 69% 67°
High 85° DENISON, IA 51442 weather forecast Day 1, 15 hours 4 PM 84° 87° Partly Cloudy S   26 57% 67°
Mostly Cloudy

Rain


Windy		 DENISON, IA 51442 weather forecast Day 1, 18 hours 7 PM 80° 83° Partly Cloudy 93%
RAIN
***		 0% Thunder
( 48% severe)		 S   23 67% 68°
DENISON, IA 51442 weather forecast Day 1, 21 hours 10 PM 69° 69° Mostly Cloudy WSW   15 87% 65°
Monday
18 MAY 2026		 DENISON, IA 51442 weather forecast Day 2, 0 hours 1 AM 65° 65° Mostly Cloudy 37%
RAIN
1–2 in		 0% Thunder
( 34% severe)		 SW   12 100% 65°
Low 58° DENISON, IA 51442 weather forecast Day 2, 3 hours 4 AM 62° 61° Mostly Cloudy WNW   8 100% 62°
High 74° DENISON, IA 51442 weather forecast Day 2, 6 hours 7 AM 59° 58° Overcast 37%
RAIN
.01–.1 in		 0% Thunder
( 28% severe)		 NNW   8 100% 59°

Mostly Cloudy

Rain Likely

 DENISON, IA 51442 weather forecast Day 2, 9 hours 10 AM 62° 61° Mostly Cloudy N   9 93% 60°
DENISON, IA 51442 weather forecast Day 2, 12 hours 1 PM 66° 66° Mostly Cloudy 83%
RAIN
***		 0% Thunder
( 49% severe)		 ENE   10 90% 63°
DENISON, IA 51442 weather forecast Day 2, 15 hours 4 PM 72° 72° Mostly Cloudy ESE   12 76% 64°
DENISON, IA 51442 weather forecast Day 2, 18 hours 7 PM 68° 68° Mostly Cloudy 99%
RAIN
***		 0% Thunder
( 48% severe)		 SSE   13 84% 63°
DENISON, IA 51442 weather forecast Day 2, 21 hours 10 PM 59° 56° Overcast N   14 100% 59°
Tuesday
19 MAY 2026		 DENISON, IA 51442 weather forecast Day 3, 0 hours 1 AM 55° 51° Overcast 35%
RAIN
***		 0% Thunder
( 18% severe)		 NW   15 100% 55°
Low 47° DENISON, IA 51442 weather forecast Day 3, 3 hours 4 AM 50° 44° Mostly Cloudy NW   17 100% 50°
High 59° DENISON, IA 51442 weather forecast Day 3, 6 hours 7 AM 47° 40° Overcast 0%

 0% Thunder
( 2% severe)		 NW   17 100% 47°

Decreasing Clouds




Breezy		 DENISON, IA 51442 weather forecast Day 3, 9 hours 10 AM 51° 45° Mostly Cloudy NW   18 83% 46°
DENISON, IA 51442 weather forecast Day 3, 15 hours 1 PM 55° 50° Mostly Cloudy 0%

 0% Thunder
( 1% severe)		 NW   18 69% 45°
DENISON, IA 51442 weather forecast Day 3, 18 hours 4 PM 58° 54° Partly Cloudy NNW   17 62% 45°
DENISON, IA 51442 weather forecast Day 3, 21 hours 7 PM 57° 54° Partly Cloudy     NNW   14 59% 43°

DENISON, IA extended weather forecast
Wednesday
20 MAY 2026		 Thursday
21 MAY 2026		 Friday
22 MAY 2026		 Saturday
23 MAY 2026		 Sunday
24 MAY 2026
Low 39° Low 47° Low 49° Low 53° Low 59°
High 64° High 65° High 71° High 78° High 80°
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
17% Rain		 Overcast
69% Rain		 Overcast
59% Rain		 Overcast
54% Rain		 Mostly Cloudy
29% Rain
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