Fort Smith, AR Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fort Smith, AR in one place.
Mostly sunny, with a high near 99. Heat index values as high as 104. East wind around 5 mph.
Local Weather Overview
This forecast page for Fort Smith, AR is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 3:29 PM CDT.
The active forecast window currently covers Aug 23 to Aug 29, 2026 for Fort Smith, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 23 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 3:29 PM CDT
- Forecast office
- TSA
- Source
- NOAA / NWS
Daily Outlook
This Week in Fort Smith
Tuesday looks like the warmest upcoming period in Fort Smith at 102 degrees F.
Thursday Night is the coolest period ahead with temperatures near 74 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph E.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 3:29 PM CDT
- Coverage
- 7 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 sourceExtended Forecast
A chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. Heat index values as high as 103. East wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Partly sunny, with a high near 98. Heat index values as high as 103. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. Heat index values as high as 104. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 102. Southeast wind 5 to 10 mph.
Partly cloudy, with a low around 77. East wind around 5 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 99. South wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. North wind 0 to 5 mph. Chance of precipitation is 20%.
Sunny, with a high near 100. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 74. Northeast wind around 5 mph.
Sunny, with a high near 99. East wind around 5 mph.
Mostly clear, with a low around 76. East wind around 5 mph.
Sunny, with a high near 99. Southeast wind around 5 mph.
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Aug 23
|
Mostly Sunny
|
99°F |
5 mph
E
|
|
Tonight
Aug 23
|
Partly Cloudy then Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
E
|
|
Monday
Aug 24
|
Chance Showers And Thunderstorms
|
98°F |
10 to 15 mph
E
|
|
Monday Night
Aug 24
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
76°F |
10 to 15 mph
E
|
|
Tuesday
Aug 25
|
Mostly Sunny
|
102°F |
5 to 10 mph
SE
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
77°F |
5 mph
E
|
|
Wednesday
Aug 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
99°F |
5 mph
S
|
|
Wednesday Night
Aug 26
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 to 5 mph
N
|
|
Thursday
Aug 27
|
Sunny
|
100°F |
0 to 5 mph
NE
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
74°F |
5 mph
NE
|
|
Friday
Aug 28
|
Sunny
|
99°F |
5 mph
E
|
|
Friday Night
Aug 28
|
Mostly Clear
|
76°F |
5 mph
E
|
|
Saturday
Aug 29
|
Sunny
|
99°F |
5 mph
SE
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
76°F |
5 to 10 mph
SE
|
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