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Clear Lake, IL Weather Forecast
Clear Lake, IL Weather Forecast Dated: 903 PM Sun Oct 18 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.
Sunday, October 18, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
55°F 13°C
Sunny
Refreshing around 65°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the SSW at 14 mph 22 km/h.
Monday, October 19, 2026
Mid-Morning
51°F 10°C
Sunny
Mid-Afternoon
67°F 20°C
Cloudy
Early-Evening
59°F 15°C
Overcast
Mildly cool near 67°F 20°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Tuesday, October 20, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
60°F 16°C
Sunny
Enjoyable around 70°F 21°C, sunny throughout the day, with steady humidity and steady pressure.
Wednesday, October 21, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
64°F 18°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure.
Thursday, October 22, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
65°F 18°C
Sunny
Mild with a high of 74°F 23°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, October 23, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Partly Cloudy
Early-Evening
67°F 20°C
Cloudy
Pleasant near 75°F 24°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds blowing from the SSE at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.
Saturday, October 24, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
68°F 20°C
Sunny
Comfortable with temperatures reaching 76°F 25°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds moving from the S to the SSW at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.
Sunday, October 25, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
58°F 15°C
Overcast
Cool with a high near 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure. Winds swinging from the ESE to the NE at 6 mph 10 km/h.
Monday, October 26, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
61°F 17°C
Overcast
Refreshing around 65°F 18°C, overcast throughout the day, with steady humidity and steady pressure.
Tuesday, October 27, 2026
Mid-Morning
58°F 15°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
63°F 18°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with steady humidity and steady pressure.
Wednesday, October 28, 2026
Mid-Morning
60°F 16°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
62°F 17°C
Overcast
Pleasant near 68°F 20°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure.
Thursday, October 29, 2026
Mid-Morning
60°F 15°C
Scattered Showers
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
66°F 19°C
Cloudy
Comfortable with temperatures reaching 71°F 22°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds shifting from the S to the SSW at 12 mph 18 km/h. Gusts up to 23 mph 38 km/h.
Friday, October 30, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
56°F 13°C
Overcast
Refreshing around 64°F 18°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds turning from the WNW to the N at 7 mph 12 km/h.
Saturday, October 31, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
57°F 14°C
Overcast
Mildly cool near 61°F 16°C, overcast throughout the day, with lower humidity and steady pressure.
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