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

Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this week. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

90°F

32°C

Humidity 59%
Wind Speed S 9 mph
Barometer 29.89 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 1 Sep 4:55 pm CDT
Extended Forecast for

Mapleton IA

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 71. Light and variable wind becoming southeast 5 to 7 mph in the evening.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 89. Light and variable wind becoming southwest 5 to 7 mph in the morning.

    High: 89 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. Light and variable wind becoming south southeast around 6 mph in the evening.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, then gradually becoming sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South wind 6 to 9 mph, with gusts as high as 17 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. South southeast wind around 6 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 92. South wind 3 to 7 mph.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind 3 to 6 mph.

    Low: 68 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 71. Light and variable wind becoming southeast 5 to 7 mph in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 89. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. Light and variable wind becoming south southeast around 6 mph in the evening.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, then gradually becoming sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 72. South wind around 8 mph, with gusts as high as 17 mph.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South wind 6 to 9 mph, with gusts as high as 17 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. South southeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 92. South wind 3 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind 3 to 6 mph.
Sunday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89. Calm wind becoming south southeast around 6 mph in the morning.
Sunday Night
A chance of showers. Partly cloudy, with a low around 66. East wind around 6 mph.
Labor Day
A slight chance of showers. Partly sunny, with a high near 85. East southeast wind 5 to 9 mph, with gusts as high as 16 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southeast wind around 9 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. South southeast wind 8 to 11 mph, with gusts as high as 22 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mapleton IA
 42.18°N 95.79°W (Elev. 1135 ft)
Last Update:
4:35 pm CDT Sep 1, 2026
Forecast Valid:
5pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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