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Dennison, IL Weather Forecast
Dennison, IL Weather Forecast Dated: 821 AM Sat Oct 31 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Saturday, October 31, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
67°F 19°C
Scattered Showers
Early-Evening
62°F 17°C
Overcast
Refreshing around 67°F 19°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the SE at 9 mph 14 km/h.
Sunday, November 1, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Mildly cool near 61°F 16°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the S to the SSE at 11 mph 18 km/h.
Monday, November 2, 2026
Mid-Morning
56°F 13°C
Scattered Showers
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
63°F 18°C
Overcast
Comfortable at 66°F 19°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds S at 16 mph 25 km/h. Gusts up to 29 mph 47 km/h.
Tuesday, November 3, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
67°F 19°C
Overcast
Mild temperatures up to 70°F 21°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the S to the SW at 13 mph 20 km/h. Gusts up to 23 mph 38 km/h.
Wednesday, November 4, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
61°F 16°C
Overcast
Refreshing around 67°F 19°C, overcast throughout the day, with lower humidity and steady pressure. Winds shifting from the NW to the SW at 4 mph 6 km/h.
Thursday, November 5, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
61°F 16°C
Overcast
Mildly cool near 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure.
Friday, November 6, 2026
Mid-Morning
58°F 15°C
Light Showers
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
58°F 14°C
Partly Cloudy
Comfortable at 62°F 17°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Saturday, November 7, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Cool with a high near 60°F 16°C, scattered downpours possible, with lower humidity and steady pressure.
Sunday, November 8, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Cloudy
Early-Evening
55°F 13°C
Drizzle
Refreshing around 61°F 16°C, locally heavy downpours at times, with steady humidity and steady pressure.
Monday, November 9, 2026
Mid-Morning
53°F 12°C
Drizzle
Mid-Afternoon
59°F 15°C
Scattered Showers
Early-Evening
53°F 12°C
Scattered Showers
Mildly cool near 59°F 15°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Tuesday, November 10, 2026
Mid-Morning
48°F 9°C
Light Fog
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
50°F 10°C
Scattered Showers
Chilly near 54°F 12°C, scattered downpours possible, with steady humidity and steady pressure.
Wednesday, November 11, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
51°F 11°C
Clear
Crisp with a high near 57°F 14°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the W to the NW at 8 mph 13 km/h.
Thursday, November 12, 2026
Mid-Morning
46°F 8°C
Partly Cloudy
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
52°F 11°C
Cloudy
Brisk around 57°F 14°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Friday, November 13, 2026
Mid-Morning
50°F 10°C
Partly Cloudy
Mid-Afternoon
60°F 16°C
Partly Cloudy
Early-Evening
56°F 13°C
Cloudy
Mildly cool near 60°F 16°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
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