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Summersville, IL Weather Forecast
Summersville, IL Weather Forecast Dated: 739 PM Sun Oct 25 2026
Expect a mild stretch with more clouds than sun and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.
Sunday, October 25, 2026
Mid-Morning
60°F 16°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
66°F 19°C
Overcast
Pleasant near 76°F 25°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling.
Monday, October 26, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
65°F 18°C
Partly Cloudy
Comfortable with temperatures reaching 75°F 24°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Tuesday, October 27, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
66°F 19°C
Overcast
Enjoyable around 75°F 24°C, overcast throughout the day, with lower humidity and steady pressure.
Wednesday, October 28, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
67°F 20°C
Cloudy
Mild temperatures up to 78°F 26°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds out of the SSW at 10 mph 17 km/h.
Thursday, October 29, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
70°F 21°C
Clear
Very warm with a high of 81°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the SW at 13 mph 22 km/h.
Friday, October 30, 2026
Mid-Morning
65°F 18°C
Cloudy
Mid-Afternoon
75°F 24°C
Scattered Showers
Early-Evening
69°F 21°C
Overcast
Pleasant near 75°F 24°C, locally heavy downpours at times, with lower humidity and steady pressure.
Saturday, October 31, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
71°F 21°C
Overcast
Early-Evening
66°F 19°C
Drizzle
Comfortable with temperatures reaching 71°F 21°C, drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
63°F 17°C
Drizzle
Mid-Afternoon
68°F 20°C
Scattered Showers
Early-Evening
64°F 17°C
Cloudy
Enjoyable around 68°F 20°C, scattered downpours possible, with steady humidity and steady pressure.
Monday, November 2, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
61°F 16°C
Overcast
Refreshing around 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds ENE at 9 mph 14 km/h.
Tuesday, November 3, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
59°F 16°C
Overcast
Mildly cool near 65°F 18°C, overcast throughout the day, with steady humidity and steady pressure. Winds out of the E at 12 mph 19 km/h. Gusts up to 23 mph 36 km/h.
Wednesday, November 4, 2026
Mid-Morning
60°F 16°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Light Rain
Early-Evening
59°F 15°C
Light Rain
Comfortable at 64°F 18°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the SE at 9 mph 15 km/h.
Thursday, November 5, 2026
Mid-Morning
60°F 16°C
Light Rain
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
59°F 15°C
Light Showers
Cool with a high near 65°F 18°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds turning from the SSE to the SSW at 3 mph 4 km/h.
Friday, November 6, 2026
Mid-Morning
59°F 15°C
Cloudy
Mid-Afternoon
65°F 18°C
Partly Cloudy
Early-Evening
58°F 15°C
Partly Cloudy
Refreshing around 65°F 18°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Saturday, November 7, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
59°F 15°C
Clear
Mildly cool near 67°F 19°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Summersville, IL Weather Radar Map
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