MOUNT VERNON, IL 62864 Weather Forecast & Current Conditions

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MT. VERNON, IL
Current Weather

6:56 PM CDT APR 19, 2026
Clear
63°F
Feels Like: 63°F
Dewpoint: 34°F
Rel. Hum.: 34%
Visibility: 10 miles
Wind: W at 6 mph
Pressure: 30.18 inches
Last 72 hours

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MOUNT VERNON, IL 62864
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear this evening, then becoming partly cloudy. Lows in the lower 40s. Northwest winds 5 to 10 mph, becoming northeast after midnight.
MONDAY
Sunny. Highs in the mid 60s. East winds around 5 mph.
MONDAY NIGHT
Mostly clear. Lows in the upper 40s. South winds 5 to 10 mph.
TUESDAY
Mostly sunny. Highs in the mid 70s. Southwest winds 10 to 15 mph.
TUESDAY NIGHT
Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph.
WEDNESDAY THROUGH THURSDAY
Mostly clear. Highs in the upper 70s. Lows in the upper 50s.
THURSDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 50 percent.
FRIDAY
Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent.
FRIDAY NIGHT
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 50 percent.
SATURDAY
Partly sunny. A chance of showers in the morning. Highs in the lower 70s. Chance of rain 40 percent.
SATURDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.
SUNDAY
Mostly sunny. A chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent.

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  4/19/2026
Sunday
19 APR 2026
MOUNT VERNON, IL 62864 weather forecast Day 1, 12 hours 1 PM 61° 59° Clear 3%

0% Thunder
( 2% severe)
W   13 35% 33°
High 65° MOUNT VERNON, IL 62864 weather forecast Day 1, 15 hours 4 PM 64° 63° Clear W   12 31% 33°
Partly Cloudy



MOUNT VERNON, IL 62864 weather forecast Day 1, 18 hours 7 PM 60° 60° Partly Cloudy 8%

0% Thunder
( 3% severe)
WNW   5 39% 35°
MOUNT VERNON, IL 62864 weather forecast Day 1, 21 hours 10 PM 50° 49° Partly Cloudy NNE   3 61% 37°
Monday
20 APR 2026
MOUNT VERNON, IL 62864 weather forecast Day 2, 0 hours 1 AM 46° 45° Partly Cloudy 4%

0% Thunder
( 3% severe)
NE   3 63% 34°
Low 39° MOUNT VERNON, IL 62864 weather forecast Day 2, 3 hours 4 AM 43° 42° Partly Cloudy NE   2 65% 32°
High 65° MOUNT VERNON, IL 62864 weather forecast Day 2, 6 hours 7 AM 41° 39° Partly Cloudy 1%

0% Thunder
( 1% severe)
NE   2 73% 33°

Clear



MOUNT VERNON, IL 62864 weather forecast Day 2, 9 hours 10 AM 52° 51° Clear E   5 48% 33°
MOUNT VERNON, IL 62864 weather forecast Day 2, 12 hours 1 PM 59° 60° Clear 1%

0% Thunder
( 2% severe)
E   3 40% 35°
MOUNT VERNON, IL 62864 weather forecast Day 2, 15 hours 4 PM 63° 64° Clear SSE   3 38% 37°
MOUNT VERNON, IL 62864 weather forecast Day 2, 18 hours 7 PM 61° 62° Clear 1%

0% Thunder
( 2% severe)
ESE   2 46% 40°
MOUNT VERNON, IL 62864 weather forecast Day 2, 21 hours 10 PM 53° 52° Clear SSE   5 61% 40°
Tuesday
21 APR 2026
MOUNT VERNON, IL 62864 weather forecast Day 3, 0 hours 1 AM 50° 48° Clear 1%

0% Thunder
( 1% severe)
S   6 66% 39°
Low 47° MOUNT VERNON, IL 62864 weather forecast Day 3, 3 hours 4 AM 49° 46° Partly Cloudy S   7 71% 40°
High 77° MOUNT VERNON, IL 62864 weather forecast Day 3, 6 hours 7 AM 50° 47° Partly Cloudy 1%

0% Thunder
( 1% severe)
SSW   7 74% 42°

Partly Cloudy



MOUNT VERNON, IL 62864 weather forecast Day 3, 9 hours 10 AM 65° 65° Partly Cloudy SW   12 54% 48°
MOUNT VERNON, IL 62864 weather forecast Day 3, 15 hours 1 PM 73° 73° Partly Cloudy 3%

0% Thunder
( 2% severe)
SW   15 41% 48°
MOUNT VERNON, IL 62864 weather forecast Day 3, 18 hours 4 PM 75° 75° Clear SW   14 38% 48°
MOUNT VERNON, IL 62864 weather forecast Day 3, 21 hours 7 PM 71° 71° Clear     SSW   10 44% 48°

MT. VERNON, IL extended weather forecast

Wednesday
22 APR 2026
Thursday
23 APR 2026
Friday
24 APR 2026
Saturday
25 APR 2026
Sunday
26 APR 2026
Low 52° Low 52° Low 55° Low 53° Low 50°
High 75° High 80° High 73° High 70° High 71°
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
Partly Cloudy
13% Rain
Partly Cloudy
16% Rain
Overcast
65% Rain
Overcast
48% Rain
Mostly Cloudy
38% Rain
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