National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

82°F

28°C

Humidity 94%
Wind Speed NW 16 G 23 mph
Barometer 29.95 in
Dewpoint 81°F (27°C)
Visibility NA
Heat Index93°F (34°C)
Last update 25 Jul 11:15 pm CDT
Extended Forecast for

Dow City IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Heat Advisory July 25, 11:25pm until July 26, 12:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory July 25, 11:25pm until July 26, 12:00pm

    NOW until 12:00pm Sun

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 96. Heat index values as high as 105. Light south southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 96 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. Northeast wind around 6 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 77. South wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 96. Heat index values as high as 105. Light south southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South wind 6 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 72. Northeast wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Partly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dow City IA
 41.94°N 95.5°W
Last Update:
9:43 pm CDT Jul 25, 2026
Forecast Valid:
11pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation