Jackson, IL 14 Day Weather - WeatherWorld.com
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Jackson, IL Weather Forecast


Jackson, IL Weather Forecast Dated: 1258 AM Sat Sep 05 2026
Expect a hot stretch with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Saturday, September 5, 2026
Mid-Morning
86°F 30°C
Overcast
Mid-Afternoon
99°F 37°C
Overcast
Early-Evening
86°F 30°C
Nearby Thunderstorms
Sizzling hot near 99°F 37°C with a heat index reaching 102°F 39°C, periods of heavy thunderstorms, with increasing humidity and steady pressure. Winds turning from the WNW to the ENE at 9 mph 15 km/h.
Sunday, September 6, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
74°F 23°C
Sunny
Balmy with temperatures reaching 86°F 30°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds blowing from the NE at 13 mph 21 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 7, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
76°F 24°C
Sunny
Quite warm around 86°F 30°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the E to the ENE at 10 mph 16 km/h.
Tuesday, September 8, 2026
Mid-Morning
75°F 24°C
Cloudy
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
88°F 31°C
Sunny
Hot temperatures near 96°F 36°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds swinging from the S to the SE at 9 mph 14 km/h.
Wednesday, September 9, 2026
Mid-Morning
82°F 28°C
Overcast
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
85°F 30°C
Sunny
Hot and sweltering around 98°F 37°C (heat index 101°F 38°C), overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SW to the NNE at 12 mph 19 km/h.
Thursday, September 10, 2026
Mid-Morning
74°F 24°C
Overcast
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
77°F 25°C
Overcast
Warm and summery near 84°F 29°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 8 mph 13 km/h.
Friday, September 11, 2026
Mid-Morning
70°F 21°C
Cloudy
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
80°F 27°C
Sunny
Balmy with temperatures reaching 88°F 31°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds out of the ESE at 8 mph 13 km/h.
Saturday, September 12, 2026
Mid-Morning
75°F 24°C
Cloudy
Mid-Afternoon
85°F 29°C
Scattered Showers
Early-Evening
83°F 29°C
Sunny
Quite warm around 85°F 29°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the SSE at 11 mph 18 km/h.
Sunday, September 13, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
90°F 32°C
Overcast
Very hot with a high of 99°F 37°C, feeling closer to 102°F 39°C in the humidity, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds S at 12 mph 19 km/h. Gusts up to 26 mph 42 km/h.
Monday, September 14, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
92°F 33°C
Partly Cloudy
Early-Evening
88°F 31°C
Scattered Showers
Sizzling hot near 92°F 33°C with a heat index reaching 95°F 35°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds shifting from the SSW to the SSE at 10 mph 15 km/h.
Tuesday, September 15, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
87°F 31°C
Sunny
Very hot with temperatures reaching 94°F 35°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the S to the SSE at 10 mph 16 km/h.
Wednesday, September 16, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
87°F 31°C
Sunny
Hot and sweltering around 96°F 36°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the SSW to the S at 9 mph 15 km/h.
Thursday, September 17, 2026
Mid-Morning
81°F 27°C
Partly Cloudy
Mid-Afternoon
90°F 32°C
Partly Cloudy
Early-Evening
77°F 25°C
Scattered Showers
Sizzling hot with 90°F 32°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds picking up from NW at 8 mph 12 km/h to N at 16 mph 25 km/h. Gusts up to 26 mph 42 km/h.
Friday, September 18, 2026
Mid-Morning
62°F 16°C
Overcast
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
62°F 17°C
Sunny
Mild temperatures up to 72°F 22°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with increasing humidity and steady pressure. Winds swinging from the N to the NE at 13 mph 21 km/h. Gusts up to 22 mph 37 km/h.
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