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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

95°F

35°C

Humidity 49%
Wind Speed S 7 mph
Barometer 29.94 in (1013.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 29 Jun 4:53 pm CDT
Extended Forecast for

Island AR

Heat Advisory until June 29, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 29, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. South wind 5 to 10 mph becoming light southeast after midnight.

    Low: 76 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming south around 5 mph in the morning.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. East wind around 5 mph becoming south in the afternoon.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 76. South wind 5 to 10 mph becoming light southeast after midnight.
Tuesday
Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming south around 5 mph in the morning.
Tuesday Night
Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. East wind around 5 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Independence Day
Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph.
Saturday Night
Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Calm wind becoming southwest around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Monday
A chance of showers. Mostly sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Island AR
 35.42°N 94.12°W
Last Update:
5:11 pm CDT Jun 29, 2026
Forecast Valid:
5pm CDT Jun 29, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

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