Current Conditions

Alton, Illinois

68°F20°C

Light Rain

Wind

E 5 mph8 km/h

Humidity

66%

Cloud Cover

62%

As of Friday, July 24, 2026 at 2:12 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 74°F23°C and morning low of 67°F20°C. Light wind from the SSE around 4 mph6 km/h. 87% chance of light rain throughout the day.

Night

Mostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 5 mph8 km/h. 68% 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 74°F23°C	Low 67°F19°C	Precip 0.21 in5.3 mm87%	Cloud 84%	Wind SE 4 mph7 km/h	Friday: Overcast and warm, with a high of 74°F23°C and morning low of 67°F20°C. Light wind from the SSE around 4 mph6 km/h. 87% chance of light rain throughout the day. Friday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 5 mph8 km/h. 68% chance of light rain in the evening.
SaturdayJul 25	Showers	High 89°F32°CFeels 100°F38°C	Low 69°F21°C	Precip 0.13 in3.2 mm61%	Cloud 58%	Wind S 5 mph7 km/h	Saturday: Mostly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C — feels like 100°F38°C. Light wind from the SSW around 4 mph7 km/h. 61% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the SSE around 5 mph8 km/h. 57% chance of showers overnight.
SundayJul 26	Drizzle	High 99°F37°CFeels 113°F45°C	Low 77°F25°C	Precip 0.01 in0.3 mm11%	Cloud 47%	Wind SSW 5 mph7 km/h	Sunday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 78°F25°C — feels like 113°F45°C. Light wind from the SW around 4 mph7 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the S around 5 mph8 km/h. 11% chance of drizzle in the evening.
MondayJul 27	Drizzle	High 99°F37°CFeels 109°F43°C	Low 80°F27°C	Precip 0.04 in1.1 mm13%	Cloud 45%	Wind SW 6 mph10 km/h	Monday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C — feels like 109°F43°C. Breezy from the SW at 7 mph11 km/h. 13% chance of drizzle in the morning. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
TuesdayJul 28	Hot	High 96°F36°CFeels 103°F40°C	Low 80°F27°C	Precip 0.02 in0.6 mm9%	Cloud 35%	Wind N 6 mph10 km/h	Tuesday: Partly cloudy and hot, with a high of 96°F36°C and morning low of 80°F27°C — feels like 104°F40°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 81°F27°C. Light wind from the N around 6 mph10 km/h.
WednesdayJul 29	Clear	High 94°F34°C	Low 75°F24°C	Precip 0.02 in0.5 mm7%	Cloud 18%	Wind NE 5 mph9 km/h	Wednesday: Mostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Light wind from the NE around 5 mph9 km/h. Humid. Wednesday Night: Mostly clear, with a low around 77°F25°C. Light wind from the NE around 6 mph9 km/h.
ThursdayJul 30	Clear	High 94°F34°C	Low 73°F23°C	Precip 0.02 in0.5 mm7%	Cloud 26%	Wind E 5 mph8 km/h	Thursday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 73°F23°C. Light wind from the E around 5 mph8 km/h. Humid. Thursday Night: Mostly clear, with a low around 75°F24°C. Light wind from the E around 5 mph8 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	74°F23°C	67°F19°C	0.21 in5.3 mm· 87%	84%	Light Rain	SE 4 mph7 km/h
DayOvercast and warm, with a high of 74°F23°C and morning low of 67°F20°C. Light wind from the SSE around 4 mph6 km/h. 87% chance of light rain throughout the day. NightMostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 5 mph8 km/h. 68% chance of light rain in the evening.
	SaturdayJul 25	89°F32°C Feels 100°F38°C	69°F21°C	0.13 in3.2 mm· 61%	58%	Showers	S 5 mph7 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C — feels like 100°F38°C. Light wind from the SSW around 4 mph7 km/h. 61% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 69°F21°C. Light wind from the SSE around 5 mph8 km/h. 57% chance of showers overnight.
	SundayJul 26	99°F37°C Feels 113°F45°C	77°F25°C	0.01 in0.3 mm· 11%	47%	Drizzle	SSW 5 mph7 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 78°F25°C — feels like 113°F45°C. Light wind from the SW around 4 mph7 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the S around 5 mph8 km/h. 11% chance of drizzle in the evening.
	MondayJul 27	99°F37°C Feels 109°F43°C	80°F27°C	0.04 in1.1 mm· 13%	45%	Drizzle	SW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C — feels like 109°F43°C. Breezy from the SW at 7 mph11 km/h. 13% chance of drizzle in the morning. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
	TuesdayJul 28	96°F36°C Feels 103°F40°C	80°F27°C	0.02 in0.6 mm· 9%	35%	Hot	N 6 mph10 km/h
DayPartly cloudy and hot, with a high of 96°F36°C and morning low of 80°F27°C — feels like 104°F40°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Light wind from the N around 6 mph10 km/h.
	WednesdayJul 29	94°F34°C	75°F24°C	0.02 in0.5 mm· 7%	18%	Clear	NE 5 mph9 km/h
DayMostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Light wind from the NE around 5 mph9 km/h. Humid. NightMostly clear, with a low around 77°F25°C. Light wind from the NE around 6 mph9 km/h.
	ThursdayJul 30	94°F34°C	73°F23°C	0.02 in0.5 mm· 7%	26%	Clear	E 5 mph8 km/h
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 73°F23°C. Light wind from the E around 5 mph8 km/h. Humid. NightMostly clear, with a low around 75°F24°C. Light wind from the E around 5 mph8 km/h.
	FridayJul 31	91°F33°C Feels 94°F35°C	75°F24°C	0.11 in2.7 mm· 23%	44%	Drizzle	SE 5 mph8 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 75°F24°C. Light wind from the S around 5 mph8 km/h. 23% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 76°F24°C. Light wind from the ESE around 5 mph8 km/h. 21% chance of drizzle throughout the night.
	SaturdayAug 1	92°F33°C	74°F23°C	0.09 in2.2 mm· 23%	39%	Drizzle	N 5 mph8 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph9 km/h. 14% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the NNE around 5 mph8 km/h. 23% chance of drizzle throughout the night.
	SundayAug 2	91°F33°C	72°F22°C	0.04 in1 mm· 11%	30%	Drizzle	N 5 mph9 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Light wind from the N around 6 mph9 km/h. NightPartly cloudy, with a low around 73°F23°C. Light wind from the NE around 5 mph8 km/h. 11% chance of drizzle overnight.
	MondayAug 3	92°F33°C	71°F22°C	0.04 in1.1 mm· 13%	34%	Drizzle	SSE 6 mph10 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 71°F22°C. Light wind from the S around 6 mph9 km/h. NightPartly cloudy, with a low around 72°F22°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 13% chance of drizzle in the evening.
	TuesdayAug 4	92°F33°C	74°F23°C	0.08 in2.1 mm· 19%	47%	Drizzle	SSW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 92°F33°C and morning low of 74°F23°C. Breezy from the SW at 7 mph11 km/h. 14% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the S at 7 mph11 km/h. 19% chance of drizzle throughout the night.
	WednesdayAug 5	90°F32°C	74°F23°C	0.09 in2.3 mm· 20%	49%	Showers	SSW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 74°F23°C. Breezy from the SW at 7 mph10 km/h. 19% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the S around 6 mph10 km/h. 20% chance of showers throughout the night.
	ThursdayAug 6	90°F32°C	72°F22°C	0.12 in3.1 mm· 16%	43%	Showers	SSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 16% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Light wind from the S around 6 mph10 km/h. 15% chance of showers throughout the night.
	FridayAug 7	90°F32°C	72°F22°C	0.09 in2.4 mm· 18%	42%	Showers	SSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Light wind from the S around 6 mph10 km/h. 18% chance of showers throughout the night.

Nearby Cities

Upper Alton2 mi4 km Godfrey4 mi7 km Old Jamestown7 mi11 km Spanish Lake7 mi12 km Florissant10 mi16 km Ferguson12 mi19 km

About This Forecast

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Coordinates: 38.8906°N, 90.1843°W·Elevation: 150m·Timezone: America/Chicago·Population: 27,003