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

Heat Wave Continues; Areas of Severe Thunderstorms and Heavy Rain through the Weekend

The prolonged and intense heat wave continues today for portions of the Ohio Valley and Mid-Atlantic, with relief expected by this weekend. There will be daily chances for severe thunderstorms and heavy rainfall in the northern Plains and Upper Midwest today through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

77°F

25°C

Humidity 74%
Wind Speed Vrbl 3 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Jun 11:55 am CDT
Extended Forecast for

Dunlap IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. Calm wind becoming south around 5 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 67. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 91. South wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Partly cloudy, with a low around 70. South wind 6 to 10 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. South wind around 6 mph becoming west in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. North wind around 6 mph becoming calm in the evening. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 85. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. North northwest wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Calm wind becoming south around 5 mph.
Tonight
A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 67. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 91. South wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 11pm. Partly cloudy, with a low around 70. South wind 6 to 10 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. South wind around 6 mph becoming west in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. North wind around 6 mph becoming calm in the evening. New rainfall amounts between a quarter and half of an inch possible.
Monday
Mostly sunny, with a high near 85. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 62. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. South southeast wind around 6 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. South southeast wind 5 to 9 mph, with gusts as high as 17 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dunlap IA
 41.85°N 95.59°W (Elev. 1194 ft)
Last Update:
11:45 am CDT Jun 27, 2025
Forecast Valid:
12pm CDT Jun 27, 2025-6pm CDT Jul 3, 2025
 
Forecast Discussion
 
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Additional Resources

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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