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Collinsville, MS Weather Forecast
Collinsville, MS Weather Forecast Dated: 231 AM Thu Sep 10 2026
Expect a hot stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.
Thursday, September 10, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
87°F 31°C
Scattered Showers
Early-Evening
83°F 28°C
Overcast
Warm and summery around 87°F 31°C (feels like 93°F 34°C), periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.
Friday, September 11, 2026
Mid-Morning
78°F 25°C
Light Showers
Mid-Afternoon
91°F 33°C
Light Showers
Early-Evening
82°F 28°C
Nearby Thunderstorms
Hot and sweltering around 91°F 33°C (heat index 96°F 36°C), scattered downpours possible, with steady humidity and steady pressure. Thunderstorms possible in the afternoon and evening.
Saturday, September 12, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
89°F 32°C
Nearby Thunderstorms
Early-Evening
85°F 29°C
Partly Cloudy
Very warm near 89°F 32°C, though humidity makes it feel like 95°F 35°C, heavy thunderstorms conditions at times, with lower humidity and steady pressure. Winds turning from the SW to the SSW at 5 mph 8 km/h.
Sunday, September 13, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
89°F 32°C
Nearby Thunderstorms
Early-Evening
85°F 30°C
Overcast
Warm and summery around 89°F 32°C (feels like 97°F 36°C), periods of heavy thunderstorms, with steady humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
96°F 35°C
Partly Cloudy
Early-Evening
89°F 32°C
Partly Cloudy
Hot and sweltering around 96°F 35°C (heat index 99°F 37°C), sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure.
Tuesday, September 15, 2026
Mid-Morning
85°F 29°C
Overcast
Mid-Afternoon
92°F 34°C
Partly Cloudy
Early-Evening
86°F 30°C
Overcast
Very hot with a high of 92°F 34°C, feeling closer to 99°F 37°C in the humidity, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
85°F 30°C
Partly Cloudy
Mid-Afternoon
97°F 36°C
Cloudy
Early-Evening
89°F 32°C
Overcast
Sizzling hot near 97°F 36°C with a heat index reaching 101°F 39°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
86°F 30°C
Sunny
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
87°F 31°C
Cloudy
Hot and sweltering around 98°F 37°C (heat index 101°F 39°C), sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds blowing from the NNE at 5 mph 8 km/h.
Friday, September 18, 2026
Mid-Morning
85°F 30°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
79°F 26°C
Scattered Showers
Very hot with a high of 97°F 36°C, feeling closer to 101°F 38°C in the humidity, locally heavy downpours at times, with increasing humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
70°F 21°C
Light Fog
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
73°F 23°C
Sunny
Very warm with a high of 83°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the NNE to the SE at 7 mph 11 km/h.
Sunday, September 20, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
76°F 25°C
Sunny
Warm and summery near 82°F 28°C, sunny throughout the day, with increasing humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
75°F 24°C
Sunny
Balmy with temperatures reaching 83°F 28°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds out of the ESE at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
78°F 26°C
Sunny
Quite warm around 86°F 30°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Wednesday, September 23, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
76°F 24°C
Scattered Showers
Mild temperatures up to 77°F 25°C, scattered downpours possible, with steady humidity and steady pressure.
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