Thomas Park, IL 14 Day Weather
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Thomas Park, IL Weather Forecast


Thomas Park, IL Weather Forecast Dated: 641 AM Mon Sep 14 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.
Monday, September 14, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
76°F 24°C
Cloudy
Early-Evening
73°F 23°C
Overcast
Pleasant near 76°F 24°C, cloudy throughout the day, with lower humidity and barometric pressure falling. Winds turning from the ESE to the SSE at 15 mph 24 km/h. Gusts up to 30 mph 48 km/h.
Tuesday, September 15, 2026
Mid-Morning
71°F 22°C
Scattered Showers
Mid-Afternoon
88°F 31°C
Scattered Showers
Early-Evening
77°F 25°C
Scattered Showers
Quite warm reaching 88°F 31°C, feeling like 91°F 33°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SSW to the N at 7 mph 10 km/h.
Wednesday, September 16, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
68°F 20°C
Light Showers
Early-Evening
64°F 18°C
Light Showers
Enjoyable around 68°F 20°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds moving from the NE to the NNE at 11 mph 17 km/h.
Thursday, September 17, 2026
Mid-Morning
63°F 17°C
Cloudy
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
70°F 21°C
Overcast
Mild temperatures up to 74°F 23°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds out of the ENE at 10 mph 16 km/h.
Friday, September 18, 2026
Mid-Morning
70°F 21°C
Cloudy
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
71°F 22°C
Overcast
Mild with a high of 76°F 24°C, cloudy through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds blowing from the E at 8 mph 13 km/h.
Saturday, September 19, 2026
Mid-Morning
68°F 20°C
Scattered Showers
Mid-Afternoon
88°F 31°C
Partly Cloudy
Early-Evening
80°F 27°C
Sunny
Very warm near 88°F 31°C, though humidity makes it feel like 91°F 33°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds turning from the S to the ESE at 10 mph 16 km/h. Gusts up to 20 mph 31 km/h.
Sunday, September 20, 2026
Mid-Morning
60°F 16°C
Light Showers
Mid-Afternoon
65°F 18°C
Partly Cloudy
Early-Evening
59°F 15°C
Scattered Showers
Comfortable at 65°F 18°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds switching from the NNE to the NE at 15 mph 23 km/h. Gusts up to 26 mph 41 km/h.
Monday, September 21, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
58°F 15°C
Sunny
Cool with a high near 64°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the ENE to the E at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
55°F 13°C
Cloudy
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
61°F 17°C
Cloudy
Mild temperatures up to 68°F 20°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
65°F 19°C
Sunny
Mild with a high of 71°F 22°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
67°F 20°C
Sunny
Pleasant near 74°F 23°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
63°F 17°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Cloudy
Early-Evening
70°F 22°C
Sunny
Comfortable with temperatures reaching 76°F 25°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds SW at 9 mph 15 km/h.
Saturday, September 26, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
74°F 24°C
Sunny
Quite warm around 81°F 27°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds out of the SSW at 12 mph 19 km/h.
Sunday, September 27, 2026
Mid-Morning
72°F 22°C
Cloudy
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
78°F 26°C
Partly Cloudy
Warm temperatures up to 86°F 30°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and steady pressure.
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