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Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Last update 22 Aug 11:55 pm CDT
Extended Forecast for

Denison IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 73. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. Calm wind.
Saturday
Sunny, with a high near 73. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 48. North northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 73. Calm wind becoming northwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 45. North wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42°N 95.35°W
Last Update:
10:33 pm CDT Aug 22, 2025
Forecast Valid:
12am CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation