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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 61°F (16°C)
Visibility 7.00 mi
Last update 28 Aug 8:15 am CDT
Extended Forecast for

Charter Oak IA

  • Today

    Today: Mostly sunny, with a high near 84. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 67. South southeast wind 9 to 14 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms before 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 89. Breezy, with a south wind 14 to 17 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Breezy.
    Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 74. South wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 92. South southwest wind around 11 mph, with gusts as high as 21 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 67. South southeast wind 9 to 14 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers and thunderstorms before 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 89. Breezy, with a south wind 14 to 17 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Increasing clouds, with a low around 74. South wind 9 to 11 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 92. South southwest wind around 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.
Tuesday
Partly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charter Oak IA
 42.07°N 95.59°W
Last Update:
6:31 am CDT Aug 28, 2026
Forecast Valid:
8am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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