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Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair and Breezy

88°F

31°C

Humidity 55%
Wind Speed S 21 G 30 mph
Barometer 29.64 in
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Heat Index93°F (34°C)
Last update 20 Jun 9:15 pm CDT
Extended Forecast for

5 Miles SSW Westside IA

Extreme Heat Warning June 20, 09:27pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 20, 09:27pm until June 22, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny and hot, with a high near 101. Heat index values as high as 106. Windy, with a south southwest wind 24 to 26 mph, with gusts as high as 38 mph.

    High: 101 °F

    Hot and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Windy, with a south southwest wind around 23 mph, with gusts as high as 32 mph.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Heat index values as high as 102. Windy, with a south wind 22 to 26 mph, with gusts as high as 34 mph.

    High: 99 °F

    Hot and Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Windy, with a south wind 18 to 22 mph, with gusts as high as 31 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Windy. Mostly
    Clear then
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Breezy. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Breezy.
    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Windy, with a south wind 23 to 26 mph, with gusts as high as 37 mph.
Saturday
Sunny and hot, with a high near 101. Heat index values as high as 106. Windy, with a south southwest wind 24 to 26 mph, with gusts as high as 38 mph.
Saturday Night
Mostly clear, with a low around 77. Windy, with a south southwest wind around 23 mph, with gusts as high as 32 mph.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 102. Windy, with a south wind 22 to 26 mph, with gusts as high as 34 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Windy, with a south wind 18 to 22 mph, with gusts as high as 31 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Breezy. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%.
Tuesday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Westside IA
 42°N 95.12°W
Last Update:
7:54 pm CDT Jun 20, 2025
Forecast Valid:
9pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025
 
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