Gilson, IL 14 Day Weather - 61436 WeatherWorld.com
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Gilson, IL Weather Forecast


Gilson, IL Weather Forecast Dated: 1017 PM Wed Sep 02 2026 (Gilson Time)
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Wednesday, September 2, 2026
Mid-Morning
82°F 28°C
Cloudy
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
88°F 31°C
Sunny
Sizzling hot near 97°F 36°C with a heat index reaching 105°F 41°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the SSW to the SE at 8 mph 13 km/h.
Thursday, September 3, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
90°F 32°C
Nearby Thunderstorms
Hot and sweltering around 90°F 32°C (heat index 96°F 36°C), locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds switching from the SSW to the SSE at 9 mph 15 km/h. Gusts up to 20 mph 31 km/h.
Friday, September 4, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
94°F 35°C
Overcast
Early-Evening
90°F 32°C
Nearby Thunderstorms
Very hot with a high of 94°F 35°C, feeling closer to 100°F 38°C in the humidity, locally heavy downpours at times, with steady humidity and steady pressure.
Saturday, September 5, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
87°F 31°C
Cloudy
Sizzling hot near 94°F 35°C with a heat index reaching 99°F 37°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds moving from the WNW to the ENE at 7 mph 11 km/h.
Sunday, September 6, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
76°F 25°C
Partly Cloudy
Very warm with a high of 84°F 29°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds swinging from the E to the ESE at 10 mph 17 km/h. Gusts up to 21 mph 33 km/h.
Monday, September 7, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
78°F 26°C
Partly Cloudy
Warm and summery near 83°F 29°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SE to the ESE at 13 mph 22 km/h. Gusts up to 25 mph 40 km/h.
Tuesday, September 8, 2026
Mid-Morning
80°F 27°C
Overcast
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
89°F 32°C
Cloudy
Sizzling hot near 98°F 37°C with a heat index reaching 103°F 39°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the S to the SE at 13 mph 20 km/h. Gusts up to 27 mph 43 km/h.
Wednesday, September 9, 2026
Mid-Morning
85°F 30°C
Cloudy
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
88°F 31°C
Sunny
Hot and sweltering around 95°F 35°C (heat index 99°F 37°C), partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the WSW to the E at 7 mph 11 km/h.
Thursday, September 10, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
82°F 28°C
Sunny
Very warm near 86°F 30°C, though humidity makes it feel like 89°F 32°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds moving from the ENE to the E at 10 mph 16 km/h.
Friday, September 11, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
93°F 34°C
Overcast
Sizzling hot near 95°F 35°C with a heat index reaching 99°F 37°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds S at 9 mph 14 km/h. Gusts up to 27 mph 44 km/h.
Saturday, September 12, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
95°F 35°C
Partly Cloudy
Early-Evening
92°F 33°C
Nearby Thunderstorms
Hot and sweltering around 95°F 35°C (heat index 100°F 38°C), locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds out of the WSW at 14 mph 23 km/h. Gusts up to 26 mph 42 km/h.
Sunday, September 13, 2026
Mid-Morning
87°F 31°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
86°F 30°C
Sunny
Hot and sweltering around 99°F 37°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds tapering down from SW 16 mph 26 km/h to SE 8 mph 12 km/h.
Monday, September 14, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
84°F 29°C
Sunny
Sizzling hot with 91°F 33°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds ESE at 6 mph 9 km/h.
Tuesday, September 15, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
88°F 31°C
Overcast
Hot and sweltering around 95°F 35°C (heat index 98°F 37°C), sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the S to the E at 8 mph 13 km/h.
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