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Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed S 20 G 26 mph
Barometer 29.62 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 21 Jun 3:35 am CDT
Extended Forecast for

Danbury IA

Extreme Heat Warning June 21, 03:56am until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 21, 03:56am 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 99. Heat index values as high as 107. Breezy, with a south southwest wind around 20 mph, with gusts as high as 35 mph.

    High: 99 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Mostly 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

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. Heat index values as high as 104. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 98 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, 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 showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 84 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    T-storms
    Likely then
    Showers

  • Tuesday

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

    High: 80 °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 30 mph.
Saturday
Sunny and hot, with a high near 99. Heat index values as high as 107. Breezy, with a south southwest wind around 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly 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 98. Heat index values as high as 104. 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. Partly cloudy, with a low around 72. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 64. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 66. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 85. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Danbury IA
 42.24°N 95.71°W (Elev. 1198 ft)
Last Update:
2:45 am CDT Jun 21, 2025
Forecast Valid:
3am 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