Conservation Lake, IL 14 Day Weather
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Conservation Lake, IL Weather Forecast


Conservation Lake, IL Weather Forecast Dated: 752 AM Mon Sep 21 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
71°F 22°C
Scattered Showers
Warm and summery near 82°F 28°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the N at 7 mph 12 km/h. Gusts up to 20 mph 32 km/h.
Tuesday, September 22, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
78°F 25°C
Cloudy
Early-Evening
69°F 21°C
Overcast
Comfortable with temperatures reaching 78°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the NNE at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
Wednesday, September 23, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
63°F 17°C
Overcast
Enjoyable around 77°F 25°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the NNE to the NE at 14 mph 22 km/h. Gusts up to 23 mph 37 km/h.
Thursday, September 24, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
72°F 22°C
Partly Cloudy
Early-Evening
67°F 19°C
Overcast
Mild temperatures up to 72°F 22°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the NNE to the NE at 12 mph 19 km/h.
Friday, September 25, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
76°F 24°C
Cloudy
Early-Evening
70°F 21°C
Partly Cloudy
Mild with a high of 76°F 24°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds shifting from the E to the NE at 9 mph 14 km/h.
Saturday, September 26, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
62°F 17°C
Overcast
Mildly cool near 62°F 17°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the ENE to the N at 8 mph 13 km/h.
Sunday, September 27, 2026
Mid-Morning
58°F 15°C
Light Showers
Mid-Afternoon
76°F 25°C
Scattered Showers
Early-Evening
67°F 20°C
Overcast
Comfortable with temperatures reaching 76°F 25°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds switching from the NNE to the NE at 10 mph 17 km/h. Gusts up to 21 mph 35 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
72°F 23°C
Cloudy
Enjoyable around 79°F 26°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
78°F 26°C
Cloudy
Early-Evening
69°F 21°C
Overcast
Mild temperatures up to 78°F 26°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the NE to the ESE at 13 mph 21 km/h. Gusts up to 21 mph 33 km/h.
Wednesday, September 30, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
65°F 18°C
Overcast
Mild with a high of 69°F 20°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the NNE to the ENE at 10 mph 15 km/h. Gusts up to 20 mph 32 km/h.
Thursday, October 1, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
61°F 16°C
Heavy Rain Showers
Early-Evening
62°F 17°C
Scattered Showers
Comfortable at 61°F 16°C, scattered downpours possible, with increasing humidity and steady pressure. Winds shifting from the NE to the ESE at 8 mph 12 km/h.
Friday, October 2, 2026
Mid-Morning
61°F 16°C
Fog
Mid-Afternoon
65°F 18°C
Scattered Showers
Early-Evening
64°F 18°C
Scattered Showers
Cool with a high near 65°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure.
Saturday, October 3, 2026
Mid-Morning
63°F 17°C
Fog
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
71°F 22°C
Sunny
Enjoyable around 76°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds blowing from the WNW at 7 mph 12 km/h.
Sunday, October 4, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
74°F 24°C
Overcast
Warm temperatures up to 81°F 27°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds SE at 8 mph 13 km/h.
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