Fort Smith Weather Forecast
- 43
- 58
Mostly Cloudy
- 47
- 72
Becoming Sunny
- 52
- 84
Sunny
- 55
- 85
Mostly Sunny
- 59
- 90
Sunny
- 56
- 90
Mostly Sunny
- 51
- 74
Mostly Cloudy
Today 17 Mar Sebastian
Mostly sunny. Not as cool with Highs in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.
Tonight 17 Mar Sebastian
Mostly cloudy. Not as cool with Lows in the lower 40s. South Winds 5 to 10 Mph with Gusts up to 30 Mph.
Fort Smith Temperature Statistics
March Temperature
Fort Smith Regional Airport (3.7 miles)
Lowest 12 March, 2026
34 °FAverage March
64.9 °FHighest 1 March, 2026
82.7 °F
Climate (2021–Present)
Fort Smith Regional Airport (3.7 miles)
Average Low 2021–2026
54 °FAverage 2021–2026
64.5 °FAverage High 2021–2026
75.8 °F