MOUNT VERNON, IL 62864 Weather Forecast & Current Conditions

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MT. VERNON, IL
Current Weather

3:56 PM CDT AUG 26, 2025
Few Clouds
77°F
Feels Like: 78°F
Dewpoint: 45°F
Rel. Hum.: 32%
Visibility: 10 miles
Wind: NE at 8 mph
Pressure: 30.22 inches
Last 72 hours

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MOUNT VERNON, IL 62864
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Sunny. Near steady temperature in the mid 70s. North winds around 5 mph.
TONIGHT
Clear. Lows in the mid 40s. North winds around 5 mph in the evening, becoming light and variable.
WEDNESDAY
Sunny. Highs in the lower 80s. South winds around 5 mph.
WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.
THURSDAY
Mostly sunny. Highs in the mid 80s. Southwest winds around 5 mph.
THURSDAY NIGHT
Mostly clear. Lows in the mid 50s.
FRIDAY THROUGH SATURDAY NIGHT
Partly cloudy. Highs in the lower 80s. Lows in the mid 50s.
SUNDAY THROUGH LABOR DAY
Mostly clear. Highs in the mid 80s. Lows in the upper 50s.

Visible Weather Satellite
MOUNT VERNON, IL 62864
Infrared Weather Satellite
MOUNT VERNON, IL 62864
NEXRAD Weather Radar
MOUNT VERNON, IL 62864

MT. VERNON, IL 3 hourly weather forecast

weather forecast created  8:00 AM EDT  8/26/2025
Tuesday
26 AUG 2025
MOUNT VERNON, IL 62864 weather forecast Day 1, 12 hours 1 PM 75° 75° Clear 0%

0% Thunder
( 1% severe)
NNW   8 38% 48°
High 79° MOUNT VERNON, IL 62864 weather forecast Day 1, 15 hours 4 PM 78° 78° Clear NNW   8 35% 48°
Clear



MOUNT VERNON, IL 62864 weather forecast Day 1, 18 hours 7 PM 71° 71° Clear 0%

0% Thunder
( 1% severe)
N   3 47% 50°
MOUNT VERNON, IL 62864 weather forecast Day 1, 21 hours 10 PM 58° 59° Clear   CALM 80% 52°
Wednesday
27 AUG 2025
MOUNT VERNON, IL 62864 weather forecast Day 2, 0 hours 1 AM 54° 54° Clear 0%

0% Thunder
( 1% severe)
  CALM 86% 50°
Low 49° MOUNT VERNON, IL 62864 weather forecast Day 2, 3 hours 4 AM 51° 51° Clear   CALM 93% 49°
High 81° MOUNT VERNON, IL 62864 weather forecast Day 2, 6 hours 7 AM 51° 51° Clear 0%

0% Thunder
( 1% severe)
  CALM 93% 49°

Partly Cloudy



MOUNT VERNON, IL 62864 weather forecast Day 2, 9 hours 10 AM 72° 72° Clear S   1 49% 52°
MOUNT VERNON, IL 62864 weather forecast Day 2, 12 hours 1 PM 78° 79° Partly Cloudy 0%

0% Thunder
( 2% severe)
SSW   2 37% 50°
MOUNT VERNON, IL 62864 weather forecast Day 2, 15 hours 4 PM 80° 80° Partly Cloudy SW   2 35% 50°
MOUNT VERNON, IL 62864 weather forecast Day 2, 18 hours 7 PM 73° 73° Mostly Cloudy 0%

0% Thunder
( 2% severe)
  CALM 49% 53°
MOUNT VERNON, IL 62864 weather forecast Day 2, 21 hours 10 PM 62° 63° Mostly Cloudy   CALM 75% 54°
Thursday
28 AUG 2025
MOUNT VERNON, IL 62864 weather forecast Day 3, 0 hours 1 AM 59° 60° Mostly Cloudy 1%

0% Thunder
( 2% severe)
SSE   1 78% 52°
Low 53° MOUNT VERNON, IL 62864 weather forecast Day 3, 3 hours 4 AM 56° 56° Mostly Cloudy S   1 83% 51°
High 83° MOUNT VERNON, IL 62864 weather forecast Day 3, 6 hours 7 AM 56° 56° Partly Cloudy 4%

0% Thunder
( 2% severe)
S   1 83% 51°

Partly Cloudy



MOUNT VERNON, IL 62864 weather forecast Day 3, 9 hours 10 AM 73° 73° Partly Cloudy SSW   5 51% 54°
MOUNT VERNON, IL 62864 weather forecast Day 3, 15 hours 1 PM 80° 80° Partly Cloudy 4%

0% Thunder
( 4% severe)
SW   6 39% 53°
MOUNT VERNON, IL 62864 weather forecast Day 3, 18 hours 4 PM 82° 81° Partly Cloudy SW   5 38% 54°
MOUNT VERNON, IL 62864 weather forecast Day 3, 21 hours 7 PM 75° 75° Partly Cloudy     SW   2 52% 56°

MT. VERNON, IL extended weather forecast

Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Tuesday
2 SEP 2025
Low 51° Low 55° Low 52° Low 55° Low 58°
High 83° High 81° High 80° High 83° High 87°
MOUNT VERNON, IL 62864 weather forecast Day 4 MOUNT VERNON, IL 62864 weather forecast Day 5 MOUNT VERNON, IL 62864 weather forecast Day 6 MOUNT VERNON, IL 62864 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
11% Rain
Partly Cloudy
15% Rain
Clear
18% Rain
Partly Cloudy
21% Rain
Partly Cloudy
27% Rain
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