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 >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

70°F

21°C

Humidity 78%
Wind Speed S 15 G 22 mph
Barometer 29.97 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 29 Aug 3:35 am CDT
Extended Forecast for

Dunlap IA

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a steady temperature around 70. South wind around 14 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 89. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 89 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 93. South wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 93 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. South southeast wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Southwest wind around 7 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the morning.

    High: 90 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind around 6 mph becoming light and variable after midnight.

    Low: 69 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a steady temperature around 70. South wind around 14 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 89. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 73. South wind 9 to 11 mph, with gusts as high as 22 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 93. South wind 10 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 74. South southeast wind 6 to 8 mph, with gusts as high as 16 mph.
Monday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Southwest wind around 7 mph. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Light and variable wind.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind around 6 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light southeast wind.
Thursday
Mostly sunny, with a high near 91. South southeast wind 3 to 7 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dunlap IA
 41.85°N 95.62°W (Elev. 1086 ft)
Last Update:
1:35 am CDT Aug 29, 2026
Forecast Valid:
3am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation