Thomas Lake, IL 14 Day Weather
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Thomas Lake, IL Weather Forecast


Thomas Lake, IL Weather Forecast Dated: 1205 AM Fri Sep 11 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Friday, September 11, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
75°F 24°C
Sunny
Pleasant near 79°F 26°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, September 12, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
91°F 33°C
Cloudy
Early-Evening
80°F 26°C
Overcast
Hot and sweltering around 91°F 33°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the SW to the NNE at 11 mph 17 km/h.
Sunday, September 13, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
79°F 26°C
Cloudy
Early-Evening
74°F 23°C
Overcast
Enjoyable around 79°F 26°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds switching from the NE to the ENE at 11 mph 16 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 14, 2026
Mid-Morning
76°F 25°C
Sunny
Mid-Afternoon
96°F 35°C
Sunny
Early-Evening
91°F 33°C
Sunny
Hot temperatures near 96°F 35°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds SSW at 12 mph 19 km/h. Gusts up to 29 mph 47 km/h.
Tuesday, September 15, 2026
Mid-Morning
75°F 24°C
Scattered Showers
Mid-Afternoon
82°F 28°C
Cloudy
Early-Evening
73°F 23°C
Partly Cloudy
Quite warm reaching 82°F 28°C, feeling like 86°F 30°C during peak afternoon, scattered downpours possible, with increasing humidity and barometric pressure rising. Winds swinging from the WNW to the NNE at 10 mph 16 km/h.
Wednesday, September 16, 2026
Mid-Morning
62°F 16°C
Light Showers
Mid-Afternoon
64°F 18°C
Light Showers
Early-Evening
65°F 19°C
Scattered Showers
Mildly cool near 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the NNE to the ENE at 9 mph 14 km/h.
Thursday, September 17, 2026
Mid-Morning
61°F 16°C
Light Fog
Mid-Afternoon
71°F 22°C
Cloudy
Early-Evening
65°F 19°C
Cloudy
Comfortable with temperatures reaching 71°F 22°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 9 mph 14 km/h.
Friday, September 18, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
73°F 23°C
Partly Cloudy
Early-Evening
67°F 20°C
Cloudy
Enjoyable around 73°F 23°C, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
74°F 24°C
Overcast
Early-Evening
69°F 21°C
Overcast
Mild temperatures up to 74°F 24°C, overcast throughout the day, with steady humidity and steady pressure.
Sunday, September 20, 2026
Mid-Morning
64°F 18°C
Cloudy
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
69°F 21°C
Cloudy
Mild with a high of 75°F 24°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds out of the E at 9 mph 14 km/h.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
69°F 21°C
Cloudy
Pleasant near 75°F 24°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
66°F 19°C
Light Fog
Mid-Afternoon
77°F 25°C
Cloudy
Early-Evening
68°F 20°C
Sunny
Comfortable with temperatures reaching 77°F 25°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the SW to the W at 8 mph 12 km/h.
Wednesday, September 23, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
59°F 15°C
Cloudy
Refreshing around 64°F 18°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the NNW to the NNE at 10 mph 16 km/h.
Thursday, September 24, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
60°F 16°C
Sunny
Mild temperatures up to 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 9 mph 15 km/h.
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