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

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed NW 3 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 12 Jul 8:53 am CDT
Extended Forecast for

Dayton AR

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly cloudy, with a high near 92. Calm wind becoming northeast around 5 mph.

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming north around 5 mph.

    High: 91 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly cloudy, with a high near 92. Calm wind becoming northeast around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm.
Monday
Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly clear, with a low around 73. Calm wind.
Thursday
Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 75. Southwest wind around 5 mph becoming calm.
Friday
Sunny, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 97. Southwest wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton AR
 35.11°N 94.23°W
Last Update:
6:50 am CDT Jul 12, 2026
Forecast Valid:
9am CDT Jul 12, 2026-6pm CDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

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