Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

64°F

18°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 29.98 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 6:15 am CDT
Extended Forecast for

4 Miles ESE Dunlap IA

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 10am.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 76. East wind 5 to 7 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Light south southeast wind becoming south 5 to 9 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. South wind 3 to 5 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 64. Calm wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 1pm.  Partly sunny, with a high near 76. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 76 °F

    Slight Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 76. East wind 5 to 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 82. Light south southeast wind becoming south 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 63. South wind 3 to 5 mph.
Friday
Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 64. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 80. Calm wind becoming north northeast around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers before 1pm. Partly sunny, with a high near 76. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. East southeast wind around 6 mph.
Monday
Partly sunny, with a high near 79. South southeast wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 63. Southeast wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Dunlap IA
 41.83°N 95.53°W (Elev. 1217 ft)
5:11 am CDT Aug 19, 2026
6am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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