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Four Lakes, IL Weather Forecast
Four Lakes, IL Weather Forecast Dated: 721 PM Sat Sep 12 2026
Expect a mild stretch with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Saturday, September 12, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
79°F 26°C
Overcast
Warm and summery near 86°F 30°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the SW to the NNW at 6 mph 10 km/h.
Sunday, September 13, 2026
Mid-Morning
67°F 20°C
Partly Cloudy
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
65°F 18°C
Partly Cloudy
Comfortable with temperatures reaching 74°F 23°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the N to the NNE at 6 mph 10 km/h.
Monday, September 14, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
67°F 19°C
Cloudy
Enjoyable around 69°F 20°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds moving from the ESE to the SSE at 10 mph 17 km/h. Gusts up to 25 mph 39 km/h.
Tuesday, September 15, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
76°F 25°C
Overcast
Warm and summery around 81°F 27°C (feels like 84°F 29°C), early showers breaking for a drier afternoon, with steady humidity and steady pressure. Winds easing from SSW 10 mph 16 km/h to N 2 mph 4 km/h.
Wednesday, September 16, 2026
Mid-Morning
68°F 20°C
Heavy Rain Showers
Mid-Afternoon
67°F 19°C
Scattered Showers
Early-Evening
63°F 17°C
Light Showers
Refreshing around 67°F 19°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 9 mph 14 km/h.
Thursday, September 17, 2026
Mid-Morning
62°F 17°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Light Showers
Early-Evening
62°F 17°C
Light Fog
Mildly cool near 62°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
66°F 19°C
Scattered Showers
Mid-Afternoon
73°F 23°C
Cloudy
Early-Evening
68°F 20°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds E at 6 mph 10 km/h.
Saturday, September 19, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
64°F 18°C
Light Showers
Early-Evening
61°F 16°C
Light Showers
Cool with a high near 64°F 18°C, clouds and showers taking over for the afternoon and evening, with increasing humidity and steady pressure. Winds switching from the E to the NE at 13 mph 21 km/h. Gusts up to 26 mph 41 km/h.
Sunday, September 20, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
64°F 18°C
Overcast
Mild temperatures up to 68°F 20°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the NE to the ENE at 13 mph 21 km/h. Gusts up to 23 mph 36 km/h.
Monday, September 21, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
65°F 18°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with steady humidity and steady pressure. Winds ENE at 12 mph 19 km/h.
Tuesday, September 22, 2026
Mid-Morning
60°F 16°C
Light Showers
Mid-Afternoon
61°F 16°C
Light Showers
Early-Evening
61°F 16°C
Light Showers
Comfortable at 61°F 16°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds shifting from the NE to the NNE at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Wednesday, September 23, 2026
Mid-Morning
65°F 19°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
63°F 18°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the WNW at 13 mph 21 km/h. Gusts up to 24 mph 38 km/h.
Thursday, September 24, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
58°F 15°C
Sunny
Refreshing around 62°F 17°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
73°F 23°C
Cloudy
Mild temperatures up to 78°F 26°C, overcast throughout the day, with increasing humidity and barometric pressure falling. Winds switching from the S to the NNW at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.
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