Denison, IA Weather - Extended Forecast

Saturday

Hot

High:
101°F

Sunny and hot, with a high near 101. Heat index values as high as 107. Windy, with a south southwest wind 20 to 23 mph, with gusts as high as 36 mph.

Saturday Night

Mostly clear

Overnight low:
78°F

Mostly clear, with a low around 78. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph.

Sunday

Hot

High:
99°F

Sunny and hot, with a high near 99. Windy.

Sunday Night

Chance of thunderstorms

Overnight low:
73°F

A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. Breezy.

Monday

Slight chance of thunderstorms

High:
89°F

Monday Night

Showers

Overnight low:
63°F

Tuesday

Showers likely

High:
82°F

Tuesday Night

Showers likely

Overnight low:
65°F

Wednesday

Showers likely

High:
86°F

Wednesday Night

Showers likely

Overnight low:
65°F

Thursday

Chance of thunderstorms

High:
80°F