Mount Vernon, IL 14 Day Weather - 62864 WeatherWorld.com
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Mount Vernon, IL Weather Forecast


Mount Vernon, IL Weather Forecast Dated: 328 AM Wed Sep 23 2026
Expect a mild stretch with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Wednesday, September 23, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
72°F 22°C
Cloudy
Early-Evening
67°F 20°C
Cloudy
Pleasant near 72°F 22°C, overcast throughout the day, with steady humidity and steady pressure. Winds out of the NNE at 9 mph 15 km/h.
Thursday, September 24, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
71°F 22°C
Cloudy
Comfortable with temperatures reaching 77°F 25°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the NNE to the ENE at 9 mph 14 km/h.
Friday, September 25, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
69°F 21°C
Cloudy
Enjoyable around 77°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the E to the ENE at 9 mph 15 km/h.
Saturday, September 26, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
64°F 18°C
Scattered Showers
Mild temperatures up to 73°F 23°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the ESE to the ENE at 8 mph 12 km/h.
Sunday, September 27, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
72°F 22°C
Light Showers
Early-Evening
68°F 20°C
Scattered Showers
Mild with a high of 72°F 22°C, scattered downpours possible, with increasing humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
65°F 19°C
Scattered Showers
Early-Evening
59°F 15°C
Cloudy
Mildly cool near 65°F 19°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds shifting from the ESE to the E at 11 mph 16 km/h.
Tuesday, September 29, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
76°F 24°C
Scattered Showers
Early-Evening
73°F 23°C
Light Showers
Comfortable with temperatures reaching 76°F 24°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SE to the SSW at 9 mph 14 km/h.
Wednesday, September 30, 2026
Mid-Morning
59°F 15°C
Light Showers
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
64°F 18°C
Sunny
Enjoyable around 71°F 22°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds switching from the W to the WNW at 11 mph 17 km/h. Gusts up to 21 mph 35 km/h.
Thursday, October 1, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
67°F 20°C
Sunny
Mild temperatures up to 73°F 23°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the W at 14 mph 22 km/h.
Friday, October 2, 2026
Mid-Morning
67°F 20°C
Partly Cloudy
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
76°F 24°C
Sunny
Very warm with a high of 85°F 29°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the SW to the SSW at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Saturday, October 3, 2026
Mid-Morning
69°F 21°C
Overcast
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
73°F 23°C
Overcast
Warm and summery near 80°F 27°C, overcast throughout the day, with steady humidity and steady pressure. Winds shifting from the SW to the NNW at 9 mph 15 km/h.
Sunday, October 4, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
66°F 19°C
Sunny
Comfortable with temperatures reaching 74°F 23°C, sunny throughout the day, with lower humidity and steady pressure.
Monday, October 5, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
79°F 26°C
Cloudy
Early-Evening
73°F 23°C
Partly Cloudy
Enjoyable around 79°F 26°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.
Tuesday, October 6, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
75°F 24°C
Sunny
Warm temperatures up to 85°F 29°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the WNW to the NNE at 8 mph 13 km/h.
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