Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

77°F

25°C

Humidity 61%
Wind Speed W 8 mph
Barometer 30.16 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 11:15 am CDT
Extended Forecast for

Dunlap IA

  • Today

    Today: Sunny, with a high near 83. Light north northwest wind.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 67. South wind 8 to 13 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

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm.  Mostly sunny, with a high near 89. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. South wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. South wind around 8 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms.  Partly sunny, with a high near 90. South southwest wind around 7 mph.

    High: 90 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 83. Light north northwest wind.
Tonight
Mostly clear, with a low around 59. Calm wind.
Friday
Mostly sunny, with a high near 85. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind 8 to 13 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 chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 89. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 74. South wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 92. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 8 mph.
Monday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 90. South southwest wind around 7 mph.
Monday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming south southeast around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Dunlap IA
 41.85°N 95.62°W (Elev. 1086 ft)
10:35 am CDT Aug 27, 2026
11am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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