Nimbocast

Fort Smith, AR Weather

Live radar, hourly and 7-day forecast, and National Weather Service alerts for Fort Smith, Sebastian County, Arkansas.

Updated Jul 29, 2026, 3:03 PM local time · Radar refreshes every 5 minutes

🌤️
Fort Smith
Mostly clear
101°F
Feels like 112°F
Wind 4 mph
Humidity 39%
Cloud cover 21%
UV index 8
Alerts 2

Active alerts (2)

Heat AdvisoryModerate
North and Central Sebastian; Southern Crawford; Central and Southern Franklin; Southern Sebastian; Ottawa; Pawnee; Delaware; Cherokee; Western Osage; Northern Sequoyah
Until Jul 30, 2026, 6:15 AM
Full details
* WHAT...Heat index values up to 110 expected this afternoon and
again Thursday afternoon.

* WHERE...In Arkansas, Southern Crawford, Central and Southern
Franklin, North and Central Sebastian, and Southern Sebastian
Counties. In Oklahoma, Cherokee, Northern Sequoyah, Delaware,
Ottawa, Pawnee, and Western Osage Counties.

* WHEN...For the first Heat Advisory, until 9 PM CDT this evening.
For the second Heat Advisory, from noon to 9 PM CDT Thursday.

* IMPACTS...Heat related illnesses are possible especially impacting
those not acclimated to the conditions or those performing
strenuous activities.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Heat AdvisoryModerate
North and Central Sebastian; Southern Crawford; Central and Southern Franklin; Southern Sebastian; Ottawa; Pawnee; Delaware; Cherokee; Western Osage; Northern Sequoyah
Until Jul 30, 2026, 6:15 AM
Full details
* WHAT...Heat index values up to 110 expected this afternoon and
again Thursday afternoon.

* WHERE...In Arkansas, Southern Crawford, Central and Southern
Franklin, North and Central Sebastian, and Southern Sebastian
Counties. In Oklahoma, Cherokee, Northern Sequoyah, Delaware,
Ottawa, Pawnee, and Western Osage Counties.

* WHEN...For the first Heat Advisory, until 9 PM CDT this evening.
For the second Heat Advisory, from noon to 9 PM CDT Thursday.

* IMPACTS...Heat related illnesses are possible especially impacting
those not acclimated to the conditions or those performing
strenuous activities.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

Fort Smith weather radar

Light Heavy

Next 24 hours

Now
🌤️
101°F
14%
4 PM
101°F
18%
5 PM
☁️
94°F
23%
6 PM
🌧️
90°F
29%
7 PM
🌤️
88°F
17%
8 PM
☀️
87°F
17%
9 PM
☀️
84°F
18%
10 PM
☀️
85°F
15%
11 PM
☀️
83°F
9%
12 AM
☀️
82°F
7%
1 AM
☀️
81°F
3%
2 AM
☀️
80°F
4%
3 AM
🌤️
80°F
6%
4 AM
☀️
79°F
9%
5 AM
☀️
78°F
13%
6 AM
☀️
78°F
14%
7 AM
☀️
78°F
15%
8 AM
☀️
81°F
17%
9 AM
☁️
84°F
18%
10 AM
🌤️
87°F
16%
11 AM
☀️
92°F
20%
12 PM
☀️
97°F
18%
1 PM
☀️
99°F
13%
2 PM
☀️
101°F
9%

7-day forecast

Today
Jul 29
🌧️
101°F
83°F
29%
Thu
Jul 30
☁️
102°F
78°F
20%
Fri
Jul 31
🌦️
107°F
80°F
10%
Sat
Aug 1
🌦️
84°F
71°F
10%
Sun
Aug 2
☀️
93°F
65°F
2%
Mon
Aug 3
☀️
95°F
65°F
4%
Tue
Aug 4
☀️
98°F
64°F
4%

Weather near Fort Smith

5 mi Van Buren, AR49 mi Fayetteville, AR49 mi Tahlequah, OK56 mi Siloam Springs, AR57 mi Springdale, AR60 mi Muskogee, OK67 mi Rogers, AR69 mi Bentonville, AR
Alerts are relayed from the National Weather Service and may lag the official source. In a life-threatening situation always follow weather.gov and local emergency broadcasts.