MOUNT VERNON, IL 62864 Weather Forecast & Current Conditions
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  62864 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

MT. VERNON, IL
Current Weather
1:56 AM CDT JUN 9, 2026
Overcast
73°F
Feels Like: 73°F
Dewpoint: 73°F
Rel. Hum.: 100%
Visibility: 10 miles
Wind: SSW at 6 mph
Pressure: 30.00 inches
Last 72 hours

Local Area Snow Depth

Illinois Current Weather

Illinois MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  62864 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

MOUNT VERNON, IL 62864
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. A chance of showers and thunderstorms this morning, then showers with thunderstorms likely this afternoon. Some thunderstorms may produce heavy rainfall. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 80 percent.
TONIGHT
Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Some thunderstorms may produce heavy rainfall. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 70 percent.
TUESDAY
Partly sunny with a chance of showers. A chance of thunderstorms. Some thunderstorms may produce heavy rainfall in the morning. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming clear. Lows in the mid 70s. Southwest winds 5 to 10 mph.
WEDNESDAY
Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph.
WEDNESDAY NIGHT
Mostly clear. Lows in the mid 70s.
THURSDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 40 percent.
THURSDAY NIGHT
Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of rain 70 percent.
FRIDAY
Partly sunny in the morning, then clearing. Highs in the upper 80s.
FRIDAY NIGHT
Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent.
SATURDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows around 70. Chance of rain 40 percent.
SUNDAY
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

  62864 WEATHER SATELLITE LOOPS
Visible Weather Satellite
MOUNT VERNON, IL 62864
Infrared Weather Satellite
MOUNT VERNON, IL 62864
  62864 WEATHER RADAR LOOP
NEXRAD Weather Radar
MOUNT VERNON, IL 62864
 MOS COMPUTER WEATHER FORECAST

MT. VERNON, IL 3 hourly weather forecast
weather forecast created  8:00 PM EDT  6/ 8/2026
Tuesday
9 JUN 2026		 MOUNT VERNON, IL 62864 weather forecast Day 1, 0 hours 1 AM 73° 73° Mostly Cloudy 84%
RAIN
***		 0% Thunder
( 40% severe)		 S   6 93% 71°
Low 72° MOUNT VERNON, IL 62864 weather forecast Day 1, 3 hours 4 AM 73° 73° Mostly Cloudy SSW   7 93% 71°
High 90° MOUNT VERNON, IL 62864 weather forecast Day 1, 6 hours 7 AM 75° 75° Mostly Cloudy 47%
RAIN
.1–.25 in		 0% Thunder
( 28% severe)		 SSW   7 90% 72°

Mostly Cloudy

Chance of Rain

 MOUNT VERNON, IL 62864 weather forecast Day 1, 9 hours 10 AM 80° 85° Mostly Cloudy SW   10 85% 75°
MOUNT VERNON, IL 62864 weather forecast Day 1, 12 hours 1 PM 85° 96° Partly Cloudy 33%
RAIN
.01–.1 in		 0% Thunder
( 50% severe)		 SW   12 77% 77°
MOUNT VERNON, IL 62864 weather forecast Day 1, 15 hours 4 PM 88° 100° Mostly Cloudy SW   10 70% 77°
MOUNT VERNON, IL 62864 weather forecast Day 1, 18 hours 7 PM 87° 100° Partly Cloudy 8%

 0% Thunder
( 24% severe)		 SSW   7 75% 78°
MOUNT VERNON, IL 62864 weather forecast Day 1, 21 hours 10 PM 81° 86° Partly Cloudy S   7 79% 74°
Wednesday
10 JUN 2026		 MOUNT VERNON, IL 62864 weather forecast Day 2, 0 hours 1 AM 79° 82° Partly Cloudy 5%

 0% Thunder
( 17% severe)		 SSW   7 79% 72°
Low 75° MOUNT VERNON, IL 62864 weather forecast Day 2, 3 hours 4 AM 77° 79° Clear SSW   7 82% 71°
High 92° MOUNT VERNON, IL 62864 weather forecast Day 2, 6 hours 7 AM 77° 78° Clear 1%

 0% Thunder
( 10% severe)		 SSW   7 85% 72°

Clear



 MOUNT VERNON, IL 62864 weather forecast Day 2, 9 hours 10 AM 85° 93° Partly Cloudy SW   10 72% 75°
MOUNT VERNON, IL 62864 weather forecast Day 2, 12 hours 1 PM 90° 100° Clear 1%

 0% Thunder
( 32% severe)		 SSW   13 60% 74°
MOUNT VERNON, IL 62864 weather forecast Day 2, 15 hours 4 PM 91° 101° Clear SSW   14 58% 74°
MOUNT VERNON, IL 62864 weather forecast Day 2, 18 hours 7 PM 88° 97° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 14% severe)		 SSW   13 63% 74°
MOUNT VERNON, IL 62864 weather forecast Day 2, 21 hours 10 PM 82° 86° Partly Cloudy SSW   10 69% 71°

MT. VERNON, IL extended weather forecast
Thursday
11 JUN 2026		 Friday
12 JUN 2026		 Saturday
13 JUN 2026		 Sunday
14 JUN 2026		 Monday
15 JUN 2026
Low 73° Low 68° Low 58° Low 63° Low 65°
High 97° High 84° High 87° High 82° High 79°
MOUNT VERNON, IL 62864 weather forecast Day 3 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
Partly Cloudy
25% Rain		 Partly Cloudy
51% Rain		 Partly Cloudy
14% Rain		 Overcast
60% Rain		 Overcast
51% Rain
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