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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

FORT SMITH AIR STRIP (FSMM8)

Lat: 45.31778°NLon: 107.93778°WElev: 3211.0ft.

NA

79°F

26°C

Humidity 31%
Wind Speed NNE 6 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Heat Index79°F (26°C)
Last update 25 Aug 12:15 PM MDT
Extended Forecast for

Fort Smith MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. East northeast wind 7 to 9 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. East northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 91. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. East southeast wind around 5 mph becoming light and variable after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 95. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 63. East southeast wind 5 to 8 mph becoming southwest in the evening.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 92. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 92 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62. Southwest wind around 9 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. West wind 6 to 10 mph.

    High: 86 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. East northeast wind 7 to 9 mph.
Tonight
Partly cloudy, with a low around 56. East northeast wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny and hot, with a high near 91. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 61. East southeast wind around 5 mph becoming light and variable after midnight.
Thursday
Mostly sunny and hot, with a high near 95. Calm wind becoming east northeast around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 63. East southeast wind 5 to 8 mph becoming southwest in the evening.
Friday
Partly sunny and hot, with a high near 92. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62. Southwest wind around 9 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. West wind 6 to 10 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 83. West southwest wind 5 to 11 mph becoming north northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 52. North wind 5 to 9 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 85. Calm wind becoming east 5 to 8 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Smith MT
 45.32°N 107.91°W (Elev. 3264 ft)
Last Update:
12:32 pm MDT Aug 25, 2026
Forecast Valid:
12pm MDT Aug 25, 2026-6pm MDT Aug 31, 2026
 
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