Rend Lake, IL 14 Day Weather
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Rend Lake, IL Weather Forecast


Rend Lake, IL Weather Forecast Dated: 134 AM Thu Sep 24 2026
Expect a mild 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.
Thursday, September 24, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm and summery near 81°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NE to the ENE at 10 mph 16 km/h.
Friday, September 25, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
70°F 21°C
Overcast
Comfortable with temperatures reaching 79°F 26°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the ENE to the NE at 11 mph 17 km/h.
Saturday, September 26, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
65°F 18°C
Scattered Showers
Comfortable at 67°F 19°C, locally heavy downpours at times, with steady humidity and steady pressure.
Sunday, September 27, 2026
Mid-Morning
65°F 19°C
Partly Cloudy
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
72°F 23°C
Sunny
Warm temperatures up to 82°F 28°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds ENE at 7 mph 12 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
82°F 28°C
Partly Cloudy
Early-Evening
73°F 23°C
Sunny
Very warm with a high of 82°F 28°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
85°F 29°C
Overcast
Early-Evening
77°F 25°C
Overcast
Warm and summery near 85°F 29°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with increasing humidity and barometric pressure falling. Winds out of the S at 12 mph 19 km/h. Gusts up to 24 mph 38 km/h.
Wednesday, September 30, 2026
Mid-Morning
69°F 21°C
Overcast
Mid-Afternoon
54°F 12°C
Light Rain
Early-Evening
56°F 13°C
Light Showers
Chilly near 54°F 12°C, drier morning followed by showers lasting through evening, with steady humidity and barometric pressure rising. Winds tapering down from SW 15 mph 24 km/h to N 6 mph 9 km/h.
Thursday, October 1, 2026
Mid-Morning
53°F 12°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
62°F 17°C
Overcast
Cool with a high near 67°F 19°C, overcast throughout the day, with lower humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
60°F 16°C
Overcast
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
70°F 22°C
Cloudy
Mild temperatures up to 76°F 25°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with increasing humidity and barometric pressure falling. Winds turning from the NE to the NNE at 9 mph 14 km/h.
Saturday, October 3, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
66°F 19°C
Sunny
Mild with a high of 74°F 23°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NW to the NNW at 11 mph 18 km/h. Gusts up to 23 mph 37 km/h.
Sunday, October 4, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
62°F 17°C
Sunny
Pleasant near 69°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the NNW to the ENE at 5 mph 8 km/h.
Monday, October 5, 2026
Mid-Morning
60°F 16°C
Overcast
Mid-Afternoon
78°F 26°C
Cloudy
Early-Evening
73°F 23°C
Cloudy
Comfortable with temperatures reaching 78°F 26°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the SSW at 10 mph 15 km/h. Gusts up to 24 mph 39 km/h.
Tuesday, October 6, 2026
Mid-Morning
67°F 20°C
Overcast
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
65°F 18°C
Partly Cloudy
Enjoyable around 75°F 24°C, partly cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds shifting from the ESE to the NE at 9 mph 14 km/h.
Wednesday, October 7, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
68°F 20°C
Overcast
Mild temperatures up to 74°F 23°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds turning from the E to the SE at 7 mph 11 km/h.
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