Current Conditions

Affton, Missouri

101°F38°C

Hot

Wind

SSW 6 mph10 km/h

Humidity

33%

Cloud Cover

23%

As of Wednesday, September 2, 2026 at 3:53 PM CDT

Today's Outlook

Day

Mostly clear and hot, with a high of 101°F38°C. Light wind from the SSW around 6 mph10 km/h. Heat risk in the afternoon.

Night

Mostly clear, with a low around 87°F31°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 101°F38°C	Low 87°F31°CFeels 90°F32°C	Precip 0 in0 mm—	Cloud 19%	Wind S 7 mph11 km/h	Wednesday: Mostly clear and hot, with a high of 101°F38°C. Light wind from the SSW around 6 mph10 km/h. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 87°F31°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
Hot	High 101°F38°C	Low 77°F25°C	Precip 0 in0 mm—	Cloud 8%	Wind SSW 7 mph11 km/h	Thursday: Mostly clear and hot, with a high of 101°F38°C and morning low of 77°F25°C. Breezy from the SSW at 7 mph11 km/h. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 80°F27°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
Hot	High 101°F38°C	Low 77°F25°C	Precip 0 in0 mm—	Cloud 9%	Wind SSW 5 mph7 km/h	Friday: Mostly clear and hot, with a high of 101°F38°C and morning low of 77°F25°C. Light wind from the SW around 4 mph6 km/h. Heat risk in the afternoon. Friday Night: Mostly clear, with a low around 79°F26°C. Breezy from the S at 5 to 7 mph8 to 11 km/h.
Drizzle	High 100°F38°C	Low 78°F26°C	Precip 0.03 in0.7 mm28%	Cloud 34%	Wind NW 4 mph7 km/h	Saturday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 78°F26°C. Light wind from the NW around 3 mph6 km/h. 25% chance of drizzle in the afternoon. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 80°F27°C. Light wind from the ESE around 5 mph8 km/h. 28% chance of drizzle in the evening.
Drizzle	High 93°F34°CFeels 96°F36°C	Low 75°F24°C	Precip 0.03 in0.7 mm14%	Cloud 44%	Wind ENE 6 mph9 km/h	Sunday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C. Light wind from the ENE around 6 mph9 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. 14% chance of drizzle in the evening.
Clear	High 93°F34°C	Low 72°F22°C	Precip 0.01 in0.2 mm4%	Cloud 30%	Wind E 6 mph9 km/h	Monday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 72°F22°C. Light wind from the E around 5 mph9 km/h. Monday Night: Partly cloudy, with a low around 74°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
Hot	High 99°F37°C	Low 71°F22°C	Precip 0 in0 mm—	Cloud 28%	Wind SSE 7 mph11 km/h	Tuesday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 71°F22°C. Breezy from the S at 6 to 7 mph10 to 12 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 74°F23°C. Breezy from the SSE at 7 to 9 mph12 to 15 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	101°F38°C	87°F31°C Feels 90°F32°C	0 in0 mm· —	19%	Hot	S 7 mph11 km/h
DayMostly clear and hot, with a high of 101°F38°C. Light wind from the SSW around 6 mph10 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 87°F31°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
	ThursdaySep 3	101°F38°C	77°F25°C	0 in0 mm· —	8%	Hot	SSW 7 mph11 km/h
DayMostly clear and hot, with a high of 101°F38°C and morning low of 77°F25°C. Breezy from the SSW at 7 mph11 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 80°F27°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
	FridaySep 4	101°F38°C	77°F25°C	0 in0 mm· —	9%	Hot	SSW 5 mph7 km/h
DayMostly clear and hot, with a high of 101°F38°C and morning low of 77°F25°C. Light wind from the SW around 4 mph6 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 79°F26°C. Breezy from the S at 5 to 7 mph8 to 11 km/h.
	SaturdaySep 5	100°F38°C	78°F26°C	0.03 in0.7 mm· 28%	34%	Drizzle	NW 4 mph7 km/h
DayPartly cloudy and hot, with a high of 100°F38°C and morning low of 78°F26°C. Light wind from the NW around 3 mph6 km/h. 25% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Light wind from the ESE around 5 mph8 km/h. 28% chance of drizzle in the evening.
	SundaySep 6	93°F34°C Feels 96°F36°C	75°F24°C	0.03 in0.7 mm· 14%	44%	Drizzle	ENE 6 mph9 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C. Light wind from the ENE around 6 mph9 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. 14% chance of drizzle in the evening.
	MondaySep 7	93°F34°C	72°F22°C	0.01 in0.2 mm· 4%	30%	Clear	E 6 mph9 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 72°F22°C. Light wind from the E around 5 mph9 km/h. NightPartly cloudy, with a low around 74°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
	TuesdaySep 8	99°F37°C	71°F22°C	0 in0 mm· —	28%	Hot	SSE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 71°F22°C. Breezy from the S at 6 to 7 mph10 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 74°F23°C. Breezy from the SSE at 7 to 9 mph12 to 15 km/h.
	WednesdaySep 9	99°F37°C	79°F26°C	0.02 in0.4 mm· 11%	25%	Drizzle	SSW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the SSW at 8 mph13 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 81°F27°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 11% chance of drizzle in the evening.
	ThursdaySep 10	94°F34°C	78°F25°C	0.04 in1.1 mm· 15%	39%	Drizzle	SW 7 mph12 km/h
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 78°F25°C. Breezy from the SW at 7 mph11 km/h. 10% chance of drizzle throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 15% chance of drizzle throughout the night.
	FridaySep 11	92°F33°C	74°F23°C	0.07 in1.8 mm· 14%	38%	Drizzle	S 7 mph11 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. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 76°F24°C. Breezy from the S at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the night.
	SaturdaySep 12	91°F33°C	73°F23°C	0.09 in2.3 mm· 17%	46%	Drizzle	S 8 mph12 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 mph12 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 75°F24°C. Breezy from the S at 7 to 8 mph12 to 12 km/h. 17% chance of drizzle throughout the night.
	SundaySep 13	90°F32°C	72°F22°C	0.09 in2.4 mm· 16%	49%	Drizzle	SSW 7 mph12 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Breezy from the SSW at 8 mph12 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 74°F23°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 16% chance of drizzle throughout the night.
	MondaySep 14	90°F32°C	72°F22°C	0.13 in3.3 mm· 19%	47%	Showers	S 7 mph12 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Breezy from the SSW at 8 mph12 km/h. 17% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Breezy from the S at 7 to 8 mph12 to 12 km/h. 19% chance of showers throughout the night.
	TuesdaySep 15	87°F31°C	71°F22°C	0.16 in4 mm· 17%	49%	Showers	SSW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 71°F22°C. Breezy from the SW at 7 mph11 km/h. 17% chance of showers throughout the day. NightPartly cloudy, with a low around 73°F23°C. Breezy from the S at 7 mph11 km/h. 16% chance of showers throughout the night.
	WednesdaySep 16	86°F30°C	67°F20°C	0.13 in3.2 mm· 16%	43%	Showers	E 6 mph10 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 67°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 16% chance of showers throughout the day. NightPartly cloudy, with a low around 70°F21°C. Light wind from the E around 6 mph10 km/h. 13% chance of showers throughout the night.

Nearby Cities

Concord2 mi4 km Mehlville3 mi5 km Lemay3 mi5 km Webster Groves3 mi5 km Kirkwood5 mi7 km Oakville6 mi9 km

About This Forecast

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Coordinates: 38.5506°N, 90.3332°W·Elevation: 188m·Timezone: America/Chicago·Population: 20,307