Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

99°F

37°C

Humidity	39%
Wind Speed	Vrbl 3 mph
Barometer	29.95 in (1013.4 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	6 Sep 11:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Fort Smith ARSimilar City Names

Heat Advisory September 7, 12:00pm until September 7, 07:00pm

Extreme Heat Warning September 6, 12:38pm until September 6, 07:00pm

Click here for hazard details and duration

Heat Advisory

Extreme Heat Warning

Extreme Heat Warning September 6, 12:38pm until September 6, 07:00pm
NOW until 7:00pm Sun
Extreme Heat Warning
This Afternoon
High: 105 °F
Chance
T-storms
Tonight
Low: 77 °F
Chance
T-storms then
Mostly Clear
Labor Day
High: 102 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 103 °F
Hot
Tuesday Night
Low: 76 °F
Clear
Wednesday
High: 103 °F
Hot
Wednesday Night
Low: 77 °F
Mostly Clear

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 105. Heat index values as high as 108. Calm wind becoming north around 5 mph.

Tonight

A chance of thunderstorms before 7pm. Mostly clear, with a low around 77. East wind around 5 mph becoming calm. Chance of precipitation is 30%.

Labor Day

Sunny and hot, with a high near 102. Heat index values as high as 107. East wind around 5 mph.

Monday Night

Mostly clear, with a low around 75. East wind 5 to 10 mph.

Tuesday

Sunny and hot, with a high near 103. East wind around 5 mph becoming calm.

Tuesday Night

Clear, with a low around 76. Southeast wind 5 to 10 mph.

Wednesday

Sunny and hot, with a high near 103. Calm wind becoming south around 5 mph.

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, mainly before 1pm. Mostly sunny, with a high near 99. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night

A 20 percent chance of showers after 1am. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming east after midnight.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98. Calm wind becoming south around 5 mph in the morning.

Friday Night

A 20 percent chance of showers. Partly cloudy, with a low around 74. Southeast wind around 5 mph.

Saturday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 99. Southeast wind 5 to 10 mph becoming south in the morning.