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⚠ Active Alerts

Heat Advisory Heat Advisory issued July 28 at 11:59PM CDT until July 29 at 9:00PM CDT by NWS Tulsa OK

Current Conditions — KFSM

88°F Clear
💧 Humidity 66%
💨 Wind 0 mph N
👁 Visibility 10.0 mi
🌡 Pressure 29.82 inHg

Hourly Forecast — Fort Smith,AR

2:00 AM 85°F Partly Cloudy 💨 0 mph
3:00 AM 83°F Mostly Cloudy 💨 0 mph
4:00 AM 83°F Slight Chance Showers And Thunderstorms 💨 0 mph
5:00 AM 82°F Slight Chance Showers And Thunderstorms 💨 0 mph
6:00 AM 81°F Slight Chance Showers And Thunderstorms 💨 0 mph
7:00 AM 81°F Slight Chance Showers And Thunderstorms 💨 0 mph
8:00 AM 83°F Slight Chance Showers And Thunderstorms 💨 0 mph
9:00 AM 86°F Slight Chance Showers And Thunderstorms 💨 0 mph
10:00 AM 89°F Slight Chance Showers And Thunderstorms 💨 0 mph
11:00 AM 91°F Slight Chance Showers And Thunderstorms 💨 0 mph
12:00 PM 93°F Slight Chance Showers And Thunderstorms 💨 0 mph
1:00 PM 94°F Chance Showers And Thunderstorms 💨 0 mph
2:00 PM 96°F Chance Showers And Thunderstorms 💨 0 mph
3:00 PM 96°F Chance Showers And Thunderstorms 💨 5 mph E
4:00 PM 96°F Chance Showers And Thunderstorms 💨 5 mph NE
5:00 PM 97°F Chance Showers And Thunderstorms 💨 5 mph NE
6:00 PM 94°F Chance Showers And Thunderstorms 💨 5 mph E
7:00 PM 93°F Slight Chance Showers And Thunderstorms 💨 5 mph E
8:00 PM 92°F Slight Chance Showers And Thunderstorms 💨 5 mph SE
9:00 PM 87°F Slight Chance Showers And Thunderstorms 💨 5 mph E
10:00 PM 86°F Mostly Cloudy 💨 5 mph E
11:00 PM 84°F Mostly Cloudy 💨 5 mph E
12:00 AM 83°F Partly Cloudy 💨 5 mph E
1:00 AM 82°F Slight Chance Showers And Thunderstorms 💨 5 mph E

Daily Forecast — Fort Smith,AR

Overnight 80°F Slight Chance Showers And Thunderstorms 💨 0 mph
Wednesday 99°F Chance Showers And Thunderstorms 💨 0 to 5 mph E
Wednesday Night 77°F Chance Showers And Thunderstorms 💨 5 mph E
Thursday 96°F Chance Showers And Thunderstorms 💨 5 mph E
Thursday Night 78°F Chance Showers And Thunderstorms then Partly Cloudy 💨 5 mph SE
Friday 100°F Mostly Sunny 💨 5 to 10 mph S
Friday Night 75°F Mostly Clear 💨 5 to 10 mph NW
Saturday 93°F Sunny 💨 5 to 15 mph NW
Saturday Night 73°F Mostly Clear 💨 5 to 15 mph N
Sunday 93°F Sunny 💨 5 to 10 mph N
Sunday Night 73°F Clear 💨 0 to 10 mph NE
Monday 95°F Sunny 💨 0 to 5 mph NE
Monday Night 74°F Clear 💨 0 to 5 mph E
Tuesday 96°F Sunny 💨 0 to 5 mph SE

🚗 Road Conditions

Good

Nearest monitored road: Grand Avenue (Secondary)

2:45 AM Good
3:00 AM Good
3:15 AM Good
3:30 AM Good
3:45 AM Good
4:00 AM Good
5:00 AM Good
6:00 AM Good

Forecast Discussion — TSA

View Full Discussion on NOAA →

Key Messages

Updated at 1230 AM CDT wed jul 29 2026

- headline worthy heat continues into wednesday, with afternoon heat indices of 105-115f. Dangerous heat is likely to persist for parts of the area through friday.

- rain and storm chances to gradually increase over the next couple days especially in the eastern parts of the area.

- a more noticeable front will bring much more pleasant weather for the weekend into early next week.

Short Term

(today) issued at 1203 AM CDT wed jul 29 2026

Hot and humid conditions will continue wednesday, and have upgraded much of eastern oklahoma to an extreme heat warning for afternoon heat index values at or above 110 degrees. Maintained the heat advisory across far eastern oklahoma and west central arkansas, where more cloud cover and greater coverage of showers and thunderstorms are expected, casting more uncertainty on just how hot it will be and on the resultant heat index values.

Scattered showers and thunderstorms are expected to develop as early as wednesday morning, mainly across far eastern oklahoma and northwest arkansas, with the activity expected to persist and possibly even increase some during the afternoon. High temperatures wednesday will generally range from the mid 90S to near or just above 100.

Long Term

(tonight through tuesday) issued at 1203 AM CDT wed jul 29 2026

After a brief break in shower and storm chances wednesday evening, an uptick in shower and storm coverage is expected again later wednesday night into thursday. Once again, the eastern part of the forecast area will be the most favored location for showers and storms. Heat headlines may again be needed in some places, but overall thursday may see a bit cooler temperatures and slightly lower heat index values than wednesday.

Once more hot day with likely heat headlines is expected friday before a cold front brings some heat relief for the weekend into early next week. Temperatures will likely fall back to below the seasonal averages saturday through monday, before warming back to near or slightly above normal by the middle part of next week.

Aviation

(06Z tafs) issued at 1230 AM CDT wed jul 29 2026

Extensive mid and high cloud will result in VFR cigs at least through the morning all sites. Scattered shra/tsra continues possible nwrn ar sites early this morning, with increasing chances during the day into the evening. MVFR vsbys expected in this activity, otherwise VFR conditions persist outside of convection. Wind generally east to southeast and less than 10 KTS all sites this forecast period.

Preliminary Point Temps/Pops

Tul 100 78 98 80 / 10 20 20 20 fsm 99 77 96 78 / 40 30 40 0 mlc 100 79 98 79 / 10 10 20 0 bvo 98 75 97 76 / 20 30 20 30 fyv 95 73 92 74 / 60 30 40 10 byv 94 72 91 73 / 50 20 40 20 mko 100 76 97 77 / 10 20 20 10 mio 96 75 93 76 / 20 30 40 20 f10 100 76 98 77 / 10 10 20 10 hhw 100 78 98 78 / 0 0 20 0

Radar — KSRX

Radar loop for KSRX

Surface Analysis — Central U.S. (South)

Surface map for Central U.S. (South)

Satellite

Satellite imagery
Expanded view