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Sinclair, IL Weather Forecast
Sinclair, IL Weather Forecast Dated: 741 AM Wed Oct 21 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. moderate humidity and a stable pattern will dominate.
Wednesday, October 21, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
74°F 23°C
Cloudy
Early-Evening
64°F 18°C
Sunny
Pleasant near 74°F 23°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Thursday, October 22, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
65°F 19°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, October 23, 2026
Mid-Morning
60°F 16°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
66°F 19°C
Sunny
Enjoyable around 76°F 25°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SSE to the SE at 8 mph 13 km/h.
Saturday, October 24, 2026
Mid-Morning
59°F 15°C
Cloudy
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
66°F 19°C
Overcast
Mild temperatures up to 75°F 24°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the SSE at 9 mph 15 km/h.
Sunday, October 25, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
67°F 19°C
Overcast
Mild with a high of 76°F 25°C, overcast throughout the day, with steady humidity and steady pressure.
Monday, October 26, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
66°F 19°C
Overcast
Pleasant near 73°F 23°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds SW at 8 mph 12 km/h.
Tuesday, October 27, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
55°F 13°C
Drizzle
Early-Evening
55°F 13°C
Scattered Showers
Chilly near 55°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the NNW to the NE at 2 mph 4 km/h.
Wednesday, October 28, 2026
Mid-Morning
56°F 13°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
59°F 15°C
Overcast
Cool with a high near 62°F 17°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the WSW at 10 mph 16 km/h.
Thursday, October 29, 2026
Mid-Morning
47°F 8°C
Overcast
Mid-Afternoon
51°F 11°C
Partly Cloudy
Early-Evening
45°F 7°C
Sunny
Brisk around 51°F 11°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds decreasing from NW 17 mph 27 km/h to NW 6 mph 10 km/h.
Friday, October 30, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
49°F 10°C
Overcast
Cool and brisk at 56°F 13°C, overcast throughout the day, with lower humidity and steady pressure.
Saturday, October 31, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
56°F 14°C
Overcast
Early-Evening
53°F 12°C
Overcast
Chilly near 56°F 14°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds switching from the ESE to the SSE at 12 mph 19 km/h. Gusts up to 25 mph 39 km/h.
Sunday, November 1, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
55°F 13°C
Drizzle
Early-Evening
56°F 13°C
Drizzle
Crisp with a high near 55°F 13°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the SSE to the S at 9 mph 15 km/h. Gusts up to 20 mph 33 km/h.
Monday, November 2, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
57°F 14°C
Overcast
Brisk around 57°F 14°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the WSW to the NNW at 4 mph 7 km/h.
Tuesday, November 3, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
63°F 17°C
Scattered Showers
Mildly cool near 66°F 19°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds out of the SE at 11 mph 17 km/h. Gusts up to 29 mph 46 km/h.
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