Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

55°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 23 Aug 5:55 am CDT
Extended Forecast for

3 Miles SW Denison IA

  • Today

    Today: Mostly cloudy, with a high near 78. Calm wind becoming south around 5 mph.

    High: 78 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Increasing clouds, with a low around 60. Light and variable wind.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms before 9am.  Cloudy through mid morning, then becoming mostly sunny, with a high near 77. South southeast wind 3 to 7 mph.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 62. South southeast wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 82 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 78. Calm wind becoming south around 5 mph.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 60. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 40 percent chance of showers and thunderstorms before 9am. Cloudy through mid morning, then becoming mostly sunny, with a high near 77. South southeast wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Mostly cloudy, with a low around 62. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Partly sunny, with a high near 80.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Denison IA
 42°N 95.38°W
6:02 am CDT Aug 23, 2026
6am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

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