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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

90°F

32°C

Humidity 59%
Wind Speed SE 8 mph
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 1 Sep 2:35 pm CDT
Extended Forecast for

Defiance IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. South wind 5 to 7 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South southeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 91. South southeast wind 6 to 9 mph becoming southwest in the afternoon.

    High: 91 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. South wind around 9 mph, with gusts as high as 17 mph.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. South wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71. South southeast wind 3 to 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Calm wind becoming south around 6 mph in the morning.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. South wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 72. South southeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 91. South southeast wind 6 to 9 mph becoming southwest in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South wind 3 to 8 mph. Winds could gust as high as 16 mph.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 73. South wind around 9 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 90. South wind 7 to 10 mph, with gusts as high as 17 mph.
Friday Night
Partly cloudy, with a low around 71. South southeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 91. Calm wind becoming south around 6 mph in the morning.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm after midnight.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south southeast around 6 mph in the morning.
Sunday Night
A slight 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 84. Southeast wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Defiance IA
 41.83°N 95.35°W (Elev. 1293 ft)
Last Update:
2:46 pm CDT Sep 1, 2026
Forecast Valid:
2pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation