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Fort Smith, AR Weather Forecast


Fort Smith, AR Weather Forecast Dated: 634 PM Thu Sep 10 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, September 10, 2026
Mid-Morning
86°F 30°C
Overcast
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
87°F 31°C
Drizzle
Sizzling hot near 90°F 32°C with a heat index reaching 99°F 37°C, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
89°F 32°C
Scattered Showers
Early-Evening
84°F 29°C
Scattered Showers
Quite warm reaching 89°F 32°C, feeling like 92°F 34°C during peak afternoon, scattered downpours possible, with lower humidity and barometric pressure falling.
Saturday, September 12, 2026
Mid-Morning
78°F 25°C
Sunny
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
88°F 31°C
Sunny
Very hot with a high of 94°F 35°C, feeling closer to 98°F 37°C in the humidity, sunny throughout the day, with lower humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
100°F 38°C
Partly Cloudy
Early-Evening
94°F 35°C
Overcast
Dangerously hot with a high of 100°F 38°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
78°F 25°C
Sunny
Mid-Afternoon
96°F 36°C
Overcast
Early-Evening
93°F 34°C
Partly Cloudy
Hot and sweltering around 96°F 36°C (heat index 99°F 37°C), sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SSW at 9 mph 14 km/h.
Tuesday, September 15, 2026
Mid-Morning
83°F 28°C
Cloudy
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
87°F 31°C
Partly Cloudy
Very hot with a high of 96°F 36°C, feeling closer to 100°F 38°C in the humidity, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
83°F 29°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
87°F 31°C
Overcast
Sizzling hot near 97°F 36°C with a heat index reaching 100°F 38°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
75°F 24°C
Light Showers
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
80°F 27°C
Partly Cloudy
Hot and sweltering around 91°F 33°C (heat index 95°F 35°C), scattered morning showers before drying out later, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Light Showers
Mid-Afternoon
87°F 30°C
Cloudy
Early-Evening
79°F 26°C
Overcast
Warm temperatures up to 87°F 30°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
68°F 20°C
Light Showers
Mid-Afternoon
66°F 19°C
Light Showers
Early-Evening
64°F 18°C
Light Showers
Mildly cool near 66°F 19°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds switching from the ESE to the ENE at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.
Sunday, September 20, 2026
Mid-Morning
62°F 17°C
Scattered Showers
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
70°F 21°C
Partly Cloudy
Pleasant near 72°F 22°C, scattered downpours possible, with lower humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
76°F 25°C
Sunny
Balmy with temperatures reaching 82°F 28°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
80°F 27°C
Sunny
Quite warm around 87°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
72°F 23°C
Sunny
Warm temperatures up to 81°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the ESE to the N at 7 mph 12 km/h.
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