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Colonial Prep School, IL 14 Day Weather
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Colonial Prep School, IL Weather Forecast
Colonial Prep School, IL Weather Forecast Dated: 1044 PM Thu Sep 17 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and a stable pattern will dominate.
Thursday, September 17, 2026
Mid-Morning
66°F 19°C
Scattered Showers
Mid-Afternoon
75°F 24°C
Scattered Showers
Early-Evening
67°F 20°C
Scattered Showers
Pleasant near 75°F 24°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NNE at 8 mph 13 km/h.
Friday, September 18, 2026
Mid-Morning
64°F 18°C
Cloudy
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
67°F 20°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the ENE to the E at 9 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
58°F 15°C
Light Rain
Mid-Afternoon
62°F 16°C
Light Showers
Early-Evening
64°F 18°C
Light Showers
Comfortable at 62°F 16°C, on-and-off showers throughout the day, with steady humidity and barometric pressure falling. Winds moving from the ESE to the SE at 8 mph 13 km/h.
Sunday, September 20, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
63°F 17°C
Light Showers
Early-Evening
61°F 17°C
Light Showers
Cool with a high near 63°F 17°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds picking up from NE at 11 mph 18 km/h to ENE at 20 mph 32 km/h. Gusts up to 27 mph 43 km/h.
Monday, September 21, 2026
Mid-Morning
58°F 15°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Light Showers
Early-Evening
60°F 16°C
Light Showers
Refreshing around 60°F 16°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the E to the ENE at 17 mph 27 km/h. Gusts up to 22 mph 35 km/h.
Tuesday, September 22, 2026
Mid-Morning
54°F 12°C
Light Showers
Mid-Afternoon
54°F 12°C
Light Showers
Early-Evening
56°F 13°C
Scattered Showers
Cool and brisk at 54°F 12°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the ENE to the NE at 17 mph 28 km/h. Gusts up to 21 mph 33 km/h.
Wednesday, September 23, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Light Showers
Early-Evening
60°F 15°C
Light Showers
Comfortable at 60°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the N to the ESE at 13 mph 21 km/h.
Thursday, September 24, 2026
Mid-Morning
58°F 14°C
Light Showers
Mid-Afternoon
60°F 15°C
Light Showers
Early-Evening
60°F 16°C
Light Showers
Cool with a high near 60°F 15°C, persistent showers off and on through the day, with lower humidity and steady pressure. Winds moving from the NNW to the N at 16 mph 25 km/h. Gusts up to 21 mph 33 km/h.
Friday, September 25, 2026
Mid-Morning
62°F 17°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
62°F 17°C
Sunny
Refreshing around 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the NNE to the N at 10 mph 15 km/h.
Saturday, September 26, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
62°F 17°C
Overcast
Mildly cool near 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure.
Sunday, September 27, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
65°F 19°C
Overcast
Comfortable at 67°F 19°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SSE to the E at 8 mph 13 km/h.
Monday, September 28, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
66°F 19°C
Sunny
Cool with a high near 66°F 19°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the ENE at 8 mph 13 km/h.
Tuesday, September 29, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
72°F 22°C
Cloudy
Early-Evening
72°F 23°C
Cloudy
Enjoyable around 72°F 22°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Cloudy
Early-Evening
60°F 15°C
Scattered Showers
Mildly cool near 61°F 16°C, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the N to the NNE at 21 mph 33 km/h. Gusts up to 28 mph 45 km/h.
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