How is the weather in Denison, IA?

At 9:15 PM on Thu, Sep 4, 2025 it is mostly cloudy and 66 degrees Fahrenheit, feeling like 66 degrees.

Denison, IA Weather Forecast and Current Conditions (51442)

66°F
Feels Like 66°F

Humidity 68% Dew Point 55°F Wind WNW 13 MPH Gusts 24 Barometer 29.74 in.755.4 mm

Solar Rad 0 w/m2 Visibility 9 mi.

Report from 3.6 miles S of central Denison at 9:15 PM Thu, Sep 4, 2025

Current Weather

66°F
Feels Like 66°F

Humidity 68% Dew Point 55°F Wind WNW 13 MPH Gusts 24 Barometer 29.74 in.755.4 mm

Solar Rad 0 w/m2 Visibility 9 mi.

Report from 3.6 miles S of central Denison at 9:15 PM Thu, Sep 4, 2025

Forecast at a Glance

ThuSep 4

20%

45°

FriSep 5

64°

39°

SatSep 6

66°

38°

SunSep 7

68°

45°

MonSep 8

10%

74°

58°

TueSep 9

50%

79°

60°

WedSep 10

20%

82°

60°

This Date in Weather History

1970 - The greatest natural disaster of record for Arizona occurred. Unprecedented rains caused rivers in central Arizona to rise five to ten feet per hour, sweeping cars and buildings as far as 30 to 40 miles downstream. Flooding claimed the lives of 23 persons, mainly campers, and caused millions of dollars damage. Water crested 36 feet above normal near Sunflower AZ. Workman's Creek was deluged with 11.40 inches of rain in 24 hours to establish a state record. Moisture from Pacific Tropical Storm Norma led to the severe flooding.

Denison 7 Day Weather Forecast Details

Thursday Sep 4

Night: Areas of smoke and a slight chance of rain showers before 11pm. Mostly clear. Low around 45, with temperatures rising to around 48 overnight. West northwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Friday Sep 5

Day: Sunny, with a high near 64. West northwest wind 8 to 13 mph, with gusts as high as 21 mph.

Night: Mostly clear, with a low around 39. West northwest wind 1 to 9 mph.

Saturday Sep 6

Day: Sunny, with a high near 66. West northwest wind 2 to 9 mph.

Night: Mostly clear, with a low around 38. North wind 1 to 6 mph.

Sunday Sep 7

Day: Sunny, with a high near 68.

Night: Mostly clear, with a low around 45.

Monday Sep 8

Day: Mostly sunny, with a high near 74.

Night: A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

Tuesday Sep 9

Day: A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.

Night: A slight chance of rain showers between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Wednesday Sep 10

Day: A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82.

Night: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60.

Thursday Sep 11

Day: A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82.

Sun & Moon Monthly

First Light 6:23 AM

Sunrise 6:51 AM

Sunset 7:52 PM

Last Light 8:20 PM

Moonrise 6:29 PM

Moonset 2:57 AM

Moon Phase

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