Sebastian County, AR Weather Forecast

County weather hub

99°
F

Chance Showers And Thunderstorms

Compare major city weather across Sebastian County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Monday, August 24, 2026
Wind: 10 mph SE
Monday

A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 99. Heat index values as high as 104. Southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Sebastian County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 5 of 5 mapped cities in Sebastian County.

Page Snapshot

Page focus
county weather
Forecast window
Aug 24 to Aug 29, 2026
Latest sync
Aug 22, 2026 11:51 PM CDT
Forecast office
TSA
Source
NOAA / NWS
Next High
99°F
Monday
Next Low
75°F
Monday Night
Rain Outlook
4
Periods mentioning precipitation
Windiest
10 mph
Monday

Daily Outlook

Today
Aug 24
Chance Showers And Thunderstorms
99 °F
/ 75°F
Wind 10 mph
Tue
Aug 25
Sunny
102 °F
/ 74°F
Wind 5 mph
Wed
Aug 26
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
99 °F
/ 72°F
Wind 5 mph
Thu
Aug 27
Sunny
99 °F
/ 71°F
Wind 0 to 5 mph
Fri
Aug 28
Sunny
99 °F
/ 72°F
Wind 0 to 5 mph
Sat
Aug 29
Sunny
100 °F
Wind 5 mph

This Week in Sebastian County

Tuesday looks like the warmest upcoming period in Sebastian County at 102 degrees F.

Thursday Night is the coolest period ahead with temperatures near 71 degrees F.

The strongest winds are forecast for Monday at about 10 mph SE.

Precipitation is mentioned in 4 upcoming forecast periods.

Forecast Details

Last updated
Aug 22, 2026 11:51 PM CDT
Coverage
6 days
Time zone
America/Chicago
Forecast office
TSA
Radar station
KSRX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Monday Night
Aug 24
75°F
Mostly Clear
5 to 10 mph SE

Mostly clear, with a low around 75. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday
Aug 25
102°F
Sunny
5 mph S

Sunny, with a high near 102. South wind around 5 mph.

Tuesday Night
Aug 25
74°F
Slight Chance Showers And Thunderstorms
5 mph E

A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. East wind around 5 mph. Chance of precipitation is 20%.

Wednesday
Aug 26
99°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
5 mph NE

A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 99. Northeast wind around 5 mph. Chance of precipitation is 20%.

Wednesday Night
Aug 26
72°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
0 to 5 mph NE

A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Northeast wind 0 to 5 mph. Chance of precipitation is 20%.

Thursday
Aug 27
99°F
Sunny
0 to 5 mph N

Sunny, with a high near 99. North wind 0 to 5 mph.

Thursday Night
Aug 27
71°F
Mostly Clear
0 to 5 mph NE

Mostly clear, with a low around 71. Northeast wind 0 to 5 mph.

Friday
Aug 28
99°F
Sunny
0 to 5 mph E

Sunny, with a high near 99. East wind 0 to 5 mph.

Friday Night
Aug 28
72°F
Mostly Clear
5 mph E

Mostly clear, with a low around 72. East wind around 5 mph.

Saturday
Aug 29
100°F
Sunny
5 mph SE

Sunny, with a high near 100. Southeast wind around 5 mph.

Detailed Forecast

Period Conditions Temp Wind
Monday
Aug 24
Chance Showers And Thunderstorms
99°F
10 mph
SE
Monday Night
Aug 24
Mostly Clear
75°F
5 to 10 mph
SE
Tuesday
Aug 25
Sunny
102°F
5 mph
S
Tuesday Night
Aug 25
Slight Chance Showers And Thunderstorms
74°F
5 mph
E
Wednesday
Aug 26
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
99°F
5 mph
NE
Wednesday Night
Aug 26
Slight Chance Showers And Thunderstorms then Partly Cloudy
72°F
0 to 5 mph
NE
Thursday
Aug 27
Sunny
99°F
0 to 5 mph
N
Thursday Night
Aug 27
Mostly Clear
71°F
0 to 5 mph
NE
Friday
Aug 28
Sunny
99°F
0 to 5 mph
E
Friday Night
Aug 28
Mostly Clear
72°F
5 mph
E
Saturday
Aug 29
Sunny
100°F
5 mph
SE
Sebastian County Courthouse-Ft. Smith City Hall  Southeast View
Sebastian County Courthouse-Ft. Smith City Hall Southeast View image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.