Current Conditions

Mount Vernon, Illinois

69°F21°C

Light Rain

Wind

NE 4 mph6 km/h

Humidity

65%

Cloud Cover

81%

As of Thursday, July 23, 2026 at 11:53 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 67°F20°C. Light wind from the ENE around 3 mph5 km/h. 55% chance of light rain in the evening.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Light Rain	High 80°F27°C	Low 67°F20°C	Precip 0.07 in1.8 mm55%	Cloud 82%	Wind ENE 3 mph5 km/h	Friday: Overcast and warm, with a high of 80°F27°C and morning low of 67°F20°C. Light wind from the ESE around 3 mph4 km/h. 55% chance of light rain around midday. Friday Night: Mostly cloudy, with a low around 67°F20°C. Light wind from the ENE around 3 mph5 km/h. 55% chance of light rain in the evening.
SaturdayJul 25	Showers	High 87°F30°CFeels 95°F35°C	Low 70°F21°C	Precip 0.11 in2.9 mm50%	Cloud 65%	Wind S 4 mph7 km/h	Saturday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 70°F21°C — feels like 95°F35°C. Light wind from the S around 5 mph8 km/h. 45% chance of light rain throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the SSE around 4 mph6 km/h. 50% chance of showers overnight.
SundayJul 26	Drizzle	High 100°F38°CFeels 112°F44°C	Low 78°F25°C	Precip 0.01 in0.3 mm13%	Cloud 48%	Wind SW 5 mph7 km/h	Sunday: Mostly cloudy and hot, with a high of 100°F38°C and morning low of 78°F26°C — feels like 111°F44°C. Light wind from the WSW around 4 mph7 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F25°C. Light wind from the SSW around 5 mph8 km/h. 13% chance of drizzle in the evening.
MondayJul 27	Drizzle	High 98°F37°CFeels 107°F41°C	Low 81°F27°CFeels 85°F30°C	Precip 0.06 in1.4 mm12%	Cloud 53%	Wind SW 7 mph11 km/h	Monday: Mostly cloudy and hot, with a high of 98°F37°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. 12% chance of drizzle throughout the day. Heat risk in the afternoon. Monday Night: Mostly cloudy, with a low around 82°F28°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 10% chance of drizzle overnight.
TuesdayJul 28	Drizzle	High 97°F36°CFeels 105°F40°C	Low 82°F28°CFeels 87°F30°C	Precip 0.04 in0.9 mm17%	Cloud 33%	Wind NW 7 mph12 km/h	Tuesday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 82°F28°C — feels like 104°F40°C. Breezy from the NW at 7 to 9 mph12 to 14 km/h. 13% chance of drizzle throughout the day. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the WNW at 8 mph12 km/h. 17% chance of drizzle in the evening.
WednesdayJul 29	Clear	High 94°F34°C	Low 75°F24°C	Precip 0.01 in0.2 mm5%	Cloud 16%	Wind NNE 6 mph10 km/h	Wednesday: Mostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Breezy from the NNE at 6 to 7 mph9 to 11 km/h. Humid. Wednesday Night: Mostly clear, with a low around 77°F25°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h.
ThursdayJul 30	Clear	High 94°F35°C	Low 73°F23°C	Precip 0.02 in0.4 mm7%	Cloud 19%	Wind ENE 5 mph8 km/h	Thursday: Mostly clear and hot, with a high of 94°F35°C and morning low of 73°F23°C. Light wind from the NE around 5 mph8 km/h. Thursday Night: Mostly clear, with a low around 75°F24°C. Light wind from the ENE around 5 mph8 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	80°F27°C	67°F20°C	0.07 in1.8 mm· 55%	82%	Light Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 67°F20°C. Light wind from the ESE around 3 mph4 km/h. 55% chance of light rain around midday. NightMostly cloudy, with a low around 67°F20°C. Light wind from the ENE around 3 mph5 km/h. 55% chance of light rain in the evening.
	SaturdayJul 25	87°F30°C Feels 95°F35°C	70°F21°C	0.11 in2.9 mm· 50%	65%	Showers	S 4 mph7 km/h
DayMostly cloudy and hot, with a high of 87°F30°C and morning low of 70°F21°C — feels like 95°F35°C. Light wind from the S around 5 mph8 km/h. 45% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the SSE around 4 mph6 km/h. 50% chance of showers overnight.
	SundayJul 26	100°F38°C Feels 112°F44°C	78°F25°C	0.01 in0.3 mm· 13%	48%	Drizzle	SW 5 mph7 km/h
DayMostly cloudy and hot, with a high of 100°F38°C and morning low of 78°F26°C — feels like 111°F44°C. Light wind from the WSW around 4 mph7 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F25°C. Light wind from the SSW around 5 mph8 km/h. 13% chance of drizzle in the evening.
	MondayJul 27	98°F37°C Feels 107°F41°C	81°F27°C Feels 85°F30°C	0.06 in1.4 mm· 12%	53%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 98°F37°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. 12% chance of drizzle throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 82°F28°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 10% chance of drizzle overnight.
	TuesdayJul 28	97°F36°C Feels 105°F40°C	82°F28°C Feels 87°F30°C	0.04 in0.9 mm· 17%	33%	Drizzle	NW 7 mph12 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 82°F28°C — feels like 104°F40°C. Breezy from the NW at 7 to 9 mph12 to 14 km/h. 13% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F28°C. Breezy from the WNW at 8 mph12 km/h. 17% chance of drizzle in the evening.
	WednesdayJul 29	94°F34°C	75°F24°C	0.01 in0.2 mm· 5%	16%	Clear	NNE 6 mph10 km/h
DayMostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Breezy from the NNE at 6 to 7 mph9 to 11 km/h. Humid. NightMostly clear, with a low around 77°F25°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h.
	ThursdayJul 30	94°F35°C	73°F23°C	0.02 in0.4 mm· 7%	19%	Clear	ENE 5 mph8 km/h
DayMostly clear and hot, with a high of 94°F35°C and morning low of 73°F23°C. Light wind from the NE around 5 mph8 km/h. NightMostly clear, with a low around 75°F24°C. Light wind from the ENE around 5 mph8 km/h.
	FridayJul 31	93°F34°C	74°F23°C	0.09 in2.2 mm· 17%	38%	Drizzle	SE 5 mph8 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 74°F23°C. Light wind from the SSE around 5 mph8 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 75°F24°C. Light wind from the ESE around 5 mph8 km/h. 17% chance of drizzle throughout the night.
	SaturdayAug 1	93°F34°C	74°F24°C	0.05 in1.3 mm· 18%	36%	Drizzle	WNW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 74°F24°C. Light wind from the WNW around 5 mph9 km/h. 13% chance of drizzle around midday. Humid. NightPartly cloudy, with a low around 76°F24°C. Light wind from the NW around 5 mph8 km/h. 18% chance of drizzle overnight.
	SundayAug 2	91°F33°C	73°F23°C	0.06 in1.5 mm· 16%	38%	Drizzle	NE 5 mph8 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C. Light wind from the N around 5 mph8 km/h. 14% chance of drizzle around midday. NightPartly cloudy, with a low around 74°F24°C. Light wind from the ENE around 5 mph8 km/h. 16% chance of drizzle throughout the night.
	MondayAug 3	92°F33°C	72°F22°C	0.07 in1.9 mm· 16%	43%	Drizzle	S 6 mph9 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 72°F22°C. Light wind from the S around 6 mph9 km/h. 12% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Light wind from the SSE around 6 mph9 km/h. 16% chance of drizzle throughout the night.
	TuesdayAug 4	92°F33°C	74°F23°C	0.07 in1.8 mm· 21%	46%	Drizzle	SSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 74°F23°C. Breezy from the SSW at 7 mph11 km/h. 15% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the SSW around 6 mph10 km/h. 21% chance of drizzle throughout the night.
	WednesdayAug 5	90°F32°C	73°F23°C	0.09 in2.4 mm· 17%	46%	Drizzle	SW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 73°F23°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the SSW around 6 mph10 km/h. 17% chance of drizzle throughout the night.
	ThursdayAug 6	89°F32°C	73°F23°C	0.1 in2.5 mm· 19%	47%	Drizzle	SW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 73°F23°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Light wind from the SSW around 6 mph9 km/h. 19% chance of drizzle throughout the night.
	FridayAug 7	89°F32°C	71°F22°C	0.08 in2.1 mm· 17%	45%	Drizzle	SW 6 mph9 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 71°F22°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 73°F23°C. Light wind from the SSW around 6 mph9 km/h. 17% chance of drizzle throughout the night.

Nearby Cities

Marion41 mi65 km Carbondale44 mi71 km O'Fallon58 mi93 km Belleville60 mi97 km Fairview Heights62 mi99 km Collinsville63 mi102 km

About This Forecast

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Coordinates: 38.3173°N, 88.9031°W·Elevation: 156m·Timezone: America/Chicago·Population: 15,087