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Potomac, IL Weather Forecast
Potomac, IL Weather Forecast Dated: 728 AM Thu Oct 22 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.
Thursday, October 22, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
63°F 18°C
Sunny
Pleasant near 73°F 23°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, October 23, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
61°F 17°C
Clear
Comfortable with temperatures reaching 71°F 22°C, sunny throughout the day, with lower humidity and steady pressure.
Saturday, October 24, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
63°F 17°C
Overcast
Enjoyable around 72°F 22°C, overcast throughout the day, with lower humidity and steady pressure.
Sunday, October 25, 2026
Mid-Morning
59°F 15°C
Cloudy
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
66°F 19°C
Overcast
Mild temperatures up to 74°F 23°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.
Monday, October 26, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
63°F 17°C
Overcast
Mild with a high of 74°F 23°C, cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Tuesday, October 27, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
62°F 17°C
Cloudy
Pleasant near 69°F 20°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the SSE to the NW at 5 mph 7 km/h.
Wednesday, October 28, 2026
Mid-Morning
52°F 11°C
Partly Cloudy
Mid-Afternoon
58°F 15°C
Sunny
Early-Evening
52°F 11°C
Clear
Comfortable at 58°F 15°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Thursday, October 29, 2026
Mid-Morning
49°F 10°C
Cloudy
Mid-Afternoon
60°F 16°C
Overcast
Early-Evening
57°F 14°C
Cloudy
Cool with a high near 60°F 16°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.
Friday, October 30, 2026
Mid-Morning
56°F 14°C
Overcast
Mid-Afternoon
60°F 16°C
Cloudy
Early-Evening
58°F 15°C
Drizzle
Refreshing around 60°F 16°C, dry most of the day, with showers developing late, with steady humidity and steady pressure.
Saturday, October 31, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
60°F 16°C
Drizzle
Early-Evening
59°F 15°C
Light Showers
Mildly cool near 60°F 16°C, drier morning followed by showers lasting through evening, with steady humidity and steady pressure. Winds switching from the SSE to the SW at 8 mph 12 km/h. Gusts up to 20 mph 32 km/h.
Sunday, November 1, 2026
Mid-Morning
60°F 15°C
Drizzle
Mid-Afternoon
63°F 17°C
Cloudy
Early-Evening
56°F 14°C
Partly Cloudy
Comfortable at 63°F 17°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds moving from the W to the N at 8 mph 13 km/h.
Monday, November 2, 2026
Mid-Morning
49°F 9°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Partly Cloudy
Early-Evening
46°F 8°C
Partly Cloudy
Crisp with a high near 52°F 11°C, partly cloudy throughout the day, with steady humidity and steady pressure. Winds swinging from the NNE to the NE at 7 mph 11 km/h.
Tuesday, November 3, 2026
Mid-Morning
48°F 9°C
Partly Cloudy
Mid-Afternoon
54°F 12°C
Partly Cloudy
Early-Evening
50°F 10°C
Partly Cloudy
Brisk around 54°F 12°C, cloudy throughout the day, with steady humidity and steady pressure.
Wednesday, November 4, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
49°F 10°C
Scattered Showers
Cool and brisk at 54°F 12°C, scattered downpours possible, with increasing humidity and steady pressure. Winds shifting from the E to the ENE at 13 mph 22 km/h. Gusts up to 28 mph 46 km/h.
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