Forrest, IL 14 Day Weather - 61741 WeatherWorld.com
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Forrest, IL Weather Forecast


Forrest, IL Weather Forecast Dated: 258 AM Wed Sep 02 2026 (Forrest Time)
Expect a very warm period with a mix of sun and clouds and occasional showers over the next two weeks. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 2, 2026
Mid-Morning
81°F 27°C
Cloudy
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
88°F 31°C
Light Showers
Sizzling hot near 95°F 35°C with a heat index reaching 101°F 38°C, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure. Winds turning from the SSW to the SSE at 9 mph 14 km/h.
Thursday, September 3, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
94°F 34°C
Sunny
Early-Evening
89°F 31°C
Nearby Thunderstorms
Hot and sweltering around 94°F 34°C (heat index 99°F 37°C), locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds switching from the SW to the SSE at 8 mph 13 km/h.
Friday, September 4, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
92°F 33°C
Nearby Thunderstorms
Early-Evening
86°F 30°C
Nearby Thunderstorms
Very hot with a high of 92°F 33°C, feeling closer to 98°F 37°C in the humidity, heavy thunderstorms conditions at times, with steady humidity and steady pressure. Winds moving from the WSW to the ESE at 6 mph 9 km/h.
Saturday, September 5, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
90°F 32°C
Nearby Thunderstorms
Early-Evening
83°F 28°C
Sunny
Sizzling hot near 90°F 32°C with a heat index reaching 98°F 37°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Sunday, September 6, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
81°F 27°C
Nearby Thunderstorms
Early-Evening
78°F 26°C
Nearby Thunderstorms
Quite warm reaching 81°F 27°C, feeling like 87°F 31°C during peak afternoon, locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds swinging from the SE to the E at 9 mph 13 km/h.
Monday, September 7, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
73°F 23°C
Nearby Thunderstorms
Very warm near 86°F 30°C, though humidity makes it feel like 91°F 33°C, heavy thunderstorms conditions at times, with steady humidity and steady pressure. Winds building from SE at 7 mph 11 km/h to SSW at 15 mph 24 km/h. Gusts up to 32 mph 50 km/h.
Tuesday, September 8, 2026
Mid-Morning
70°F 21°C
Light Showers
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
60°F 16°C
Scattered Showers
Comfortable at 67°F 19°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds turning from the NW to the NE at 13 mph 21 km/h. Gusts up to 22 mph 35 km/h.
Wednesday, September 9, 2026
Mid-Morning
59°F 15°C
Cloudy
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
74°F 23°C
Overcast
Enjoyable around 74°F 23°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds switching from the ESE to the SE at 10 mph 17 km/h. Gusts up to 24 mph 38 km/h.
Thursday, September 10, 2026
Mid-Morning
86°F 30°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
92°F 34°C
Nearby Thunderstorms
Dangerously hot with a high of 100°F 38°C (heat index near 106°F 41°C), heavy thunderstorms conditions at times, with lower humidity and steady pressure. Winds blowing from the SW at 15 mph 24 km/h. Gusts up to 27 mph 44 km/h.
Friday, September 11, 2026
Mid-Morning
69°F 21°C
Light Showers
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
70°F 22°C
Overcast
Mild with a high of 77°F 25°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
71°F 22°C
Overcast
Pleasant near 75°F 24°C, overcast throughout the day, with steady humidity and steady pressure. Winds ESE at 9 mph 15 km/h. Gusts up to 20 mph 31 km/h.
Sunday, September 13, 2026
Mid-Morning
71°F 22°C
Cloudy
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
84°F 29°C
Sunny
Very hot with a high of 90°F 32°C, feeling closer to 95°F 35°C in the humidity, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the SSE to the S at 9 mph 14 km/h.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Partly Cloudy
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
80°F 27°C
Sunny
Sizzling hot near 93°F 34°C with a heat index reaching 99°F 37°C, sunny throughout the day, with increasing humidity and steady pressure. Winds turning from the WSW to the NE at 11 mph 17 km/h.
Tuesday, September 15, 2026
Mid-Morning
67°F 20°C
Light Fog
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
75°F 24°C
Partly Cloudy
Quite warm reaching 80°F 27°C, feeling like 83°F 28°C during peak afternoon, partly cloudy through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds ENE at 7 mph 12 km/h.
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