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      Extreme Heat Warning
      until 7:00 PM CDT
      +1 more alert
      Elev 400 ft, 35.396 °N 94.420 °W

      Fort Smith, AR

      Fort Smith Station104°
      Updated: 1:32 PM CDT on September 8, 2026 (GMT -5)
      3 minutes ago
      104°
      78°
      104
      Feels Like 115
      Sunny
      N
      5
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Wed 09/09
        High 104°f
         15% Precip. / 0 in
        Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High 104F. Winds SE at 5 to 10 mph.
        Tonight
        Wed 09/09
        Low 77°f
         2% Precip. / 0 in
        Partly cloudy skies. Low 77F. Winds SE at 5 to 10 mph.
        Tomorrow
        Thu 09/10
        High 104°f77°f
         3% Precip. / 0 in
        A mainly sunny sky. Very hot. High 104F. Winds SSW at 5 to 10 mph.
        Hourly Forecast
        Now
        100°
        2PM
        102°
        3PM
        103°
        4PM
        103°
        5PM
        103°
        6PM
        102°
        7PM
        100°
        7:34PM
        Sunset
        8PM
        97°
        9PM
        94°
        10PM
        91°
        11PM
        88°
        12AM
        86°
        1AM
        84°
        2AM
        83°
        3AM
        82°
        4AM
        81°
        5AM
        80°
        6AM
        79°
        6:56AM
        Sunrise
        7AM
        78°
        8AM
        81°
        9AM
        86°
        10AM
        91°
        11AM
        94°
        12PM
        97°
        1PM
        99°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        66
        Moderate
        UV Index
        8
        Very High
        Additional Conditions
        1. Pressure 29.99 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point68°F
        5. Humidity 35%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KFSM Station History
        Almanac for September 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 104°F 89°F 102°F 1925
        4. Low 78°F 66°F 49°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.5 in -
        7. Snow 0 in 0 in -
        Almanac for September 9, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 104°F 89°F 100°F
        4. Low 78°F 66°F 48°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:55 AM 7:34 PM
        3. Civil Twilight 6:29 AM 8:00 PM
        4. Nautical Twilight 5:59 AM 8:30PM
        5. Astronomical Twilight 5:28 AM 9:01 PM
        1. Length of Visible Light 13h 30m
        2. Length of Day 12h 39m
        3. Tomorrow will be 2 minutes 12 seconds shorter
        1. Moon 4:00 AM 6:16 PM
        2. Waning Crescent9% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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