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.

Fair and Breezy

84°F

29°C

Humidity 66%
Wind Speed S 22 G 36 mph
Barometer 29.63 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 21 Jun 12:55 am CDT
Extended Forecast for

Danbury IA

Extreme Heat Warning June 21, 01:18am until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 21, 01:18am until June 22, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Overnight

    Low: 78 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 109. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 100 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 77 °F

    Clear and
    Breezy then
    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Heat index values as high as 103. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 97 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 72. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 86 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%.

    High: 81 °F

    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 78. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 109. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday Night
Clear, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 103. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 72. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
A slight chance of thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Danbury IA
 42.24°N 95.71°W (Elev. 1198 ft)
Last Update:
11:05 pm CDT Jun 20, 2025
Forecast Valid:
1am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

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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