Rainbow, IL 14 Day Weather
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Rainbow, IL Weather Forecast


Rainbow, IL Weather Forecast Dated: 1047 AM Sat Sep 05 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.
Saturday, September 5, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
80°F 27°C
Sunny
Scorching heat reaching 100°F 38°C, feeling like 121°F 50°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds turning from the NNW to the ENE at 11 mph 17 km/h. Gusts up to 20 mph 31 km/h.
Sunday, September 6, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
80°F 27°C
Cloudy
Early-Evening
72°F 23°C
Overcast
Balmy with temperatures reaching 80°F 27°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the E to the ENE at 10 mph 15 km/h.
Monday, September 7, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
72°F 23°C
Sunny
Quite warm around 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the E to the ESE at 8 mph 13 km/h.
Tuesday, September 8, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
90°F 32°C
Partly Cloudy
Early-Evening
88°F 31°C
Sunny
Hot temperatures near 90°F 32°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds out of the S at 10 mph 17 km/h. Gusts up to 25 mph 40 km/h.
Wednesday, September 9, 2026
Mid-Morning
74°F 23°C
Partly Cloudy
Mid-Afternoon
85°F 30°C
Cloudy
Early-Evening
76°F 25°C
Sunny
Very warm with a high of 85°F 30°C, cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds shifting from the W to the N at 6 mph 10 km/h.
Thursday, September 10, 2026
Mid-Morning
69°F 20°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
71°F 22°C
Partly Cloudy
Pleasant near 77°F 25°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
65°F 18°C
Partly Cloudy
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
74°F 23°C
Overcast
Comfortable with temperatures reaching 78°F 26°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds ESE at 13 mph 20 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Light Showers
Mid-Afternoon
85°F 30°C
Scattered Showers
Early-Evening
84°F 29°C
Scattered Showers
Quite warm reaching 85°F 30°C, feeling like 89°F 32°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. Winds out of the SSW at 17 mph 27 km/h. Gusts up to 22 mph 36 km/h.
Sunday, September 13, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
89°F 31°C
Overcast
Very hot with a high of 97°F 36°C, feeling closer to 101°F 39°C in the humidity, cloudy through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds blowing from the SW at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
Monday, September 14, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
91°F 33°C
Sunny
Very hot with a high of 99°F 37°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the ESE at 7 mph 11 km/h.
Tuesday, September 15, 2026
Mid-Morning
84°F 29°C
Overcast
Mid-Afternoon
101°F 38°C
Scattered Showers
Early-Evening
87°F 31°C
Sunny
Dangerously hot temperatures around 101°F 38°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the SSW to the SSE at 10 mph 15 km/h.
Wednesday, September 16, 2026
Mid-Morning
81°F 27°C
Overcast
Mid-Afternoon
98°F 36°C
Sunny
Early-Evening
85°F 30°C
Sunny
Very hot with a high of 98°F 36°C, feeling closer to 101°F 38°C in the humidity, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
74°F 24°C
Overcast
Mid-Afternoon
91°F 33°C
Cloudy
Early-Evening
86°F 30°C
Nearby Thunderstorms
Sizzling hot near 91°F 33°C with a heat index reaching 94°F 35°C, periods of heavy thunderstorms, with lower humidity and barometric pressure falling. Winds turning from the SE to the SSW at 3 mph 6 km/h.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Partly Cloudy
Early-Evening
74°F 24°C
Partly Cloudy
Warm temperatures up to 81°F 27°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds switching from the NE to the ENE at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.
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