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
4:56 PM CDT JUN 26, 2026
Scattered Clouds Light Rain 79°F
Feels Like:	82°F
Dewpoint:	73°F
Rel. Hum.:	82%
Visibility:	10 miles
Wind:	SW at 9 mph
Pressure:	29.95 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Regional Weather Maps

(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

TONIGHT
Mostly cloudy. Showers with thunderstorms likely this evening, then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 80 percent.

SATURDAY
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Some thunderstorms may produce heavy rainfall in the afternoon. Highs in the mid 80s. West winds around 5 mph. Chance of rain 50 percent.

SATURDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the lower 70s. Calm winds, becoming southeast around 5 mph after midnight. Chance of rain 50 percent.

SUNDAY
Mostly sunny. Humid with highs in the lower 90s. South winds 5 to 10 mph.

SUNDAY NIGHT
Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph.

MONDAY AND MONDAY NIGHT
Mostly clear. Highs in the mid 90s. Lows in the mid 70s.

TUESDAY THROUGH WEDNESDAY
Clear, hot. Highs in the mid 90s. Lows in the mid 70s.

WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s.

FRIDAY
Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 30 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 AM EDT 6/26/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
26 JUN 2026

1 PM

75°

75°

Mostly Cloudy

94%
RAIN
***

0% Thunder
( 60% severe)

S 9

94%

73°

High 78°

4 PM

77°

78°

Mostly Cloudy

S 10

87%

73°

Mostly Cloudy

Rain

7 PM

77°

78°

Mostly Cloudy

65%
RAIN
***

0% Thunder
( 56% severe)

S 8

87%

73°

10 PM

73°

73°

Mostly Cloudy

S 5

93%

71°

Saturday
27 JUN 2026

1 AM

72°

72°

Mostly Cloudy

38%
RAIN
.5–1 in

0% Thunder
( 48% severe)

S 3

93%

70°

Low 67°

4 AM

71°

71°

Mostly Cloudy

SW 1

93%

69°

High 84°

7 AM

70°

70°

Mostly Cloudy

24%
RAIN
<.01 in

0% Thunder
( 32% severe)

WSW 1

100%

70°

Mostly Cloudy

Chance of Rain

10 AM

75°

75°

Mostly Cloudy

W 3

87%

71°

1 PM

80°

84°

Mostly Cloudy

26%
RAIN
.01–.1 in

0% Thunder
( 35% severe)

W 3

77%

72°

4 PM

83°

89°

Mostly Cloudy

W 2

72%

73°

7 PM

82°

88°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 36% severe)

CALM

77%

74°

10 PM

75°

75°

Mostly Cloudy

CALM

90%

72°

Sunday
28 JUN 2026

1 AM

73°

73°

Mostly Cloudy

35%
RAIN
***

0% Thunder
( 32% severe)

CALM

93%

71°

Low 70°

4 AM

73°

73°

Partly Cloudy

CALM

93%

71°

High 93°

7 AM

74°

74°

Partly Cloudy

3%

0% Thunder
( 15% severe)

SE 3

93%

72°

Partly Cloudy

10 AM

83°

91°

Partly Cloudy

S 7

80%

76°

1 PM

89°

101°

Partly Cloudy

0%

0% Thunder
( 19% severe)

SSW 8

66%

76°

4 PM

92°

105°

Partly Cloudy

SSW 8

60%

76°

7 PM

89°

102°

Clear

S 8

68%

77°


MT. VERNON, IL extended weather forecast
Monday 29 JUN 2026	Tuesday 30 JUN 2026	Wednesday 1 JUL 2026	Thursday 2 JUL 2026	Friday 3 JUL 2026
Low 72°	Low 72°	Low 71°	Low 72°	Low 72°
High 99°	High 99°	High 98°	High 95°	High 92°

Clear 11% Rain	Clear 16% Rain	Partly Cloudy 19% Rain	Partly Cloudy 29% Rain	Partly Cloudy 35% Rain

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