Current Conditions

Upper Alton, Illinois

95°F35°C

Partly Cloudy

Wind

SSE 6 mph9 km/h

Humidity

34%

Cloud Cover

82%

As of Tuesday, September 8, 2026 at 5:16 PM CDT

Today's Outlook

Day

Overcast and hot, with a high of 95°F35°C and morning low of 89°F32°C. Light wind from the SSE around 5 mph9 km/h.

Night

Partly cloudy, with a low around 83°F28°C. Breezy from the SSE at 7 mph11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 95°F35°C	Low 83°F28°C	Precip 0 in0 mm—	Cloud 62%	Wind SSE 6 mph10 km/h	Tuesday: Overcast and hot, with a high of 95°F35°C and morning low of 89°F32°C. Light wind from the SSE around 5 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the SSE at 7 mph11 km/h.
Drizzle	High 93°F34°CFeels 98°F37°C	Low 77°F25°C	Precip 0.04 in1 mm27%	Cloud 44%	Wind SW 6 mph9 km/h	Wednesday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 99°F37°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F25°C. Breezy from the S at 6 to 8 mph9 to 13 km/h. 27% chance of drizzle in the evening.
Rain	High 79°F26°C	Low 73°F23°C	Precip 0.76 in19.4 mm99%	Cloud 92%	Wind NNW 4 mph6 km/h	Thursday: Overcast and warm, with a high of 79°F26°C and morning low of 73°F23°C. Light wind from the W around 4 mph6 km/h. 99% chance of rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 73°F23°C. Light wind from the NE around 4 mph6 km/h. 88% chance of rain throughout the night.
Drizzle	High 84°F29°CFeels 87°F30°C	Low 68°F20°C	Precip 0.06 in1.5 mm31%	Cloud 53%	Wind ESE 4 mph7 km/h	Friday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Light wind from the ESE around 4 mph7 km/h. 31% chance of drizzle throughout the day. Humid. Friday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the E around 4 mph7 km/h.
Drizzle	High 89°F32°CFeels 93°F34°C	Low 70°F21°C	Precip 0.03 in0.7 mm11%	Cloud 42%	Wind SSW 5 mph8 km/h	Saturday: Mostly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the day. Humid. Saturday Night: Partly cloudy, with a low around 71°F22°C. Light wind from the S around 5 mph7 km/h.
Clear	High 87°F30°C	Low 69°F21°C	Precip 0.02 in0.5 mm6%	Cloud 32%	Wind NNE 6 mph9 km/h	Sunday: Partly cloudy and hot, with a high of 87°F30°C and morning low of 69°F21°C. Light wind from the N around 6 mph9 km/h. Sunday Night: Partly cloudy, with a low around 72°F22°C. Breezy from the NE at 6 to 7 mph9 to 11 km/h.
Clear	High 91°F33°C	Low 68°F20°C	Precip 0.04 in0.9 mm6%	Cloud 30%	Wind SSE 8 mph13 km/h	Monday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h. Monday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the SSE at 8 to 10 mph13 to 17 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	95°F35°C	83°F28°C	0 in0 mm· —	62%	Partly Cloudy	SSE 6 mph10 km/h
DayOvercast and hot, with a high of 95°F35°C and morning low of 89°F32°C. Light wind from the SSE around 5 mph9 km/h. NightPartly cloudy, with a low around 83°F28°C. Breezy from the SSE at 7 mph11 km/h.
	WednesdaySep 9	93°F34°C Feels 98°F37°C	77°F25°C	0.04 in1 mm· 27%	44%	Drizzle	SW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 99°F37°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F25°C. Breezy from the S at 6 to 8 mph9 to 13 km/h. 27% chance of drizzle in the evening.
	ThursdaySep 10	79°F26°C	73°F23°C	0.76 in19.4 mm· 99%	92%	Rain	NNW 4 mph6 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 73°F23°C. Light wind from the W around 4 mph6 km/h. 99% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the NE around 4 mph6 km/h. 88% chance of rain throughout the night.
	FridaySep 11	84°F29°C Feels 87°F30°C	68°F20°C	0.06 in1.5 mm· 31%	53%	Drizzle	ESE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Light wind from the ESE around 4 mph7 km/h. 31% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 69°F21°C. Light wind from the E around 4 mph7 km/h.
	SaturdaySep 12	89°F32°C Feels 93°F34°C	70°F21°C	0.03 in0.7 mm· 11%	42%	Drizzle	SSW 5 mph8 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 71°F22°C. Light wind from the S around 5 mph7 km/h.
	SundaySep 13	87°F30°C	69°F21°C	0.02 in0.5 mm· 6%	32%	Clear	NNE 6 mph9 km/h
DayPartly cloudy and hot, with a high of 87°F30°C and morning low of 69°F21°C. Light wind from the N around 6 mph9 km/h. NightPartly cloudy, with a low around 72°F22°C. Breezy from the NE at 6 to 7 mph9 to 11 km/h.
	MondaySep 14	91°F33°C	68°F20°C	0.04 in0.9 mm· 6%	30%	Clear	SSE 8 mph13 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h. NightPartly cloudy, with a low around 70°F21°C. Breezy from the SSE at 8 to 10 mph13 to 17 km/h.
	TuesdaySep 15	91°F33°C	73°F23°C	0.07 in1.9 mm· 24%	41%	Showers	SSW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 18% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 24% chance of showers throughout the night.
	WednesdaySep 16	89°F32°C Feels 92°F33°C	71°F22°C	0.1 in2.5 mm· 27%	49%	Showers	SE 6 mph9 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 71°F22°C. Light wind from the SSE around 5 mph9 km/h. 27% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 22% chance of drizzle throughout the night.
	ThursdaySep 17	91°F33°C Feels 94°F34°C	74°F23°C	0.11 in2.7 mm· 24%	34%	Showers	S 8 mph12 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 74°F23°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 18% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h. 24% chance of drizzle throughout the night.
	FridaySep 18	85°F30°C	70°F21°C	0.08 in2.1 mm· 14%	39%	Drizzle	SW 8 mph12 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 70°F21°C. Breezy from the WSW at 8 mph12 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 73°F23°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. 14% chance of drizzle throughout the night.
	SaturdaySep 19	81°F27°C	66°F19°C	0.13 in3.4 mm· 18%	48%	Showers	WNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the W at 7 mph11 km/h. 18% chance of showers throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the NNW at 7 mph11 km/h. 17% chance of showers throughout the night.
	SundaySep 20	75°F24°C	61°F16°C	0.19 in4.8 mm· 23%	57%	Showers	N 7 mph11 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the N at 7 mph11 km/h. 21% chance of showers throughout the night.
	MondaySep 21	74°F23°C	57°F14°C	0.1 in2.6 mm· 16%	54%	Showers	NNE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 57°F14°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. 15% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the NNE at 7 mph11 km/h. 16% chance of drizzle throughout the night.
	TuesdaySep 22	75°F24°C	56°F13°C	0.07 in1.8 mm· 12%	52%	Drizzle	ENE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 56°F13°C. Breezy from the ENE at 7 mph11 km/h. NightMostly cloudy, with a low around 58°F15°C. Light wind from the ENE around 6 mph10 km/h. 12% chance of drizzle throughout the night.

Nearby Cities

Alton2 mi4 km Godfrey4 mi6 km Old Jamestown9 mi14 km Spanish Lake9 mi15 km Florissant13 mi20 km Edwardsville13 mi20 km

About This Forecast

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Coordinates: 38.9114°N, 90.1507°W·Elevation: 166m·Timezone: America/Chicago·Population: 29,251