Current Conditions

Affton, Missouri

91°F33°C

Hot

Wind

SE 6 mph10 km/h

Humidity

36%

Cloud Cover

52%

As of Tuesday, September 8, 2026 at 6:54 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 83°F29°C. Breezy from the SE at 7 mph11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 96°F35°C	Low 83°F29°C	Precip 0 in0 mm—	Cloud 68%	Wind SSE 6 mph9 km/h	Tuesday: Overcast and hot, with a high of 96°F35°C. Light wind from the SSE around 5 mph8 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 83°F29°C. Breezy from the SE at 7 mph11 km/h.
Showers	High 95°F35°CFeels 100°F38°C	Low 78°F25°C	Precip 0.04 in1 mm38%	Cloud 44%	Wind SW 6 mph10 km/h	Wednesday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 78°F25°C — feels like 100°F38°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. 24% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the S at 6 to 8 mph9 to 13 km/h. 38% chance of showers in the evening.
Rain	High 80°F27°C	Low 73°F23°C	Precip 0.54 in13.6 mm95%	Cloud 90%	Wind NNW 4 mph6 km/h	Thursday: Overcast and warm, with a high of 80°F27°C and morning low of 73°F23°C. Light wind from the WNW around 4 mph6 km/h. 95% chance of rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 74°F23°C. Light wind from the NNE around 4 mph6 km/h. 75% chance of light rain throughout the night.
Showers	High 85°F29°CFeels 88°F31°C	Low 69°F21°C	Precip 0.12 in3 mm34%	Cloud 55%	Wind ESE 4 mph6 km/h	Friday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 69°F21°C. Light wind from the ESE around 4 mph6 km/h. 34% chance of showers throughout the day. Humid. Friday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the ESE around 4 mph6 km/h. 15% chance of drizzle before dawn.
Drizzle	High 90°F32°CFeels 93°F34°C	Low 70°F21°C	Precip 0.04 in1.1 mm15%	Cloud 42%	Wind SW 5 mph8 km/h	Saturday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C. Light wind from the WSW around 5 mph8 km/h. 15% chance of drizzle throughout the day. Humid. Saturday Night: Partly cloudy, with a low around 71°F22°C. Light wind from the SSW around 5 mph8 km/h. 11% chance of drizzle in the evening.
Clear	High 87°F31°C	Low 69°F21°C	Precip 0.01 in0.2 mm6%	Cloud 26%	Wind N 6 mph9 km/h	Sunday: Partly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Light wind from the N around 6 mph9 km/h. Sunday Night: Mostly clear, with a low around 72°F22°C. Light wind from the NNE around 6 mph9 km/h.
Clear	High 91°F33°C	Low 68°F20°C	Precip 0.04 in0.9 mm8%	Cloud 27%	Wind SSE 8 mph12 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 9 mph12 to 15 km/h. Monday Night: Mostly clear, with a low around 70°F21°C. Breezy from the SE at 8 to 10 mph13 to 16 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	96°F35°C	83°F29°C	0 in0 mm· —	68%	Hot	SSE 6 mph9 km/h
DayOvercast and hot, with a high of 96°F35°C. Light wind from the SSE around 5 mph8 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F29°C. Breezy from the SE at 7 mph11 km/h.
	WednesdaySep 9	95°F35°C Feels 100°F38°C	78°F25°C	0.04 in1 mm· 38%	44%	Showers	SW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 78°F25°C — feels like 100°F38°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. 24% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the S at 6 to 8 mph9 to 13 km/h. 38% chance of showers in the evening.
	ThursdaySep 10	80°F27°C	73°F23°C	0.54 in13.6 mm· 95%	90%	Rain	NNW 4 mph6 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 73°F23°C. Light wind from the WNW around 4 mph6 km/h. 95% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F23°C. Light wind from the NNE around 4 mph6 km/h. 75% chance of light rain throughout the night.
	FridaySep 11	85°F29°C Feels 88°F31°C	69°F21°C	0.12 in3 mm· 34%	55%	Showers	ESE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 69°F21°C. Light wind from the ESE around 4 mph6 km/h. 34% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 70°F21°C. Light wind from the ESE around 4 mph6 km/h. 15% chance of drizzle before dawn.
	SaturdaySep 12	90°F32°C Feels 93°F34°C	70°F21°C	0.04 in1.1 mm· 15%	42%	Drizzle	SW 5 mph8 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C. Light wind from the WSW around 5 mph8 km/h. 15% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 71°F22°C. Light wind from the SSW around 5 mph8 km/h. 11% chance of drizzle in the evening.
	SundaySep 13	87°F31°C	69°F21°C	0.01 in0.2 mm· 6%	26%	Clear	N 6 mph9 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Light wind from the N around 6 mph9 km/h. NightMostly clear, with a low around 72°F22°C. Light wind from the NNE around 6 mph9 km/h.
	MondaySep 14	91°F33°C	68°F20°C	0.04 in0.9 mm· 8%	27%	Clear	SSE 8 mph12 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 9 mph12 to 15 km/h. NightMostly clear, with a low around 70°F21°C. Breezy from the SE at 8 to 10 mph13 to 16 km/h.
	TuesdaySep 15	93°F34°C	73°F23°C	0.04 in0.9 mm· 22%	34%	Drizzle	SSW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 73°F23°C. Breezy from the SSW at 8 mph13 km/h. 15% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 75°F24°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 22% chance of drizzle in the evening.
	WednesdaySep 16	91°F33°C Feels 94°F35°C	72°F22°C	0.07 in1.8 mm· 21%	47%	Drizzle	SSE 6 mph9 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Light wind from the SSE around 5 mph9 km/h. 21% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 74°F24°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h. 15% chance of drizzle throughout the night.
	ThursdaySep 17	92°F34°C Feels 95°F35°C	74°F23°C	0.06 in1.5 mm· 17%	31%	Drizzle	S 8 mph12 km/h
DayPartly cloudy and hot, with a high of 92°F34°C and morning low of 74°F23°C. Breezy from the SSW at 8 mph12 km/h. 13% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 76°F24°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle throughout the night.
	FridaySep 18	86°F30°C	71°F22°C	0.13 in3.3 mm· 19%	39%	Showers	SW 7 mph12 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 71°F22°C. Breezy from the WSW at 8 mph12 km/h. 19% chance of drizzle throughout the day. NightPartly cloudy, with a low around 74°F23°C. Breezy from the SSW at 7 to 8 mph12 to 13 km/h. 17% chance of showers throughout the night.
	SaturdaySep 19	80°F27°C	65°F19°C	0.16 in4 mm· 21%	51%	Showers	NW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 65°F19°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the N at 7 mph11 km/h. 21% chance of showers throughout the night.
	SundaySep 20	76°F25°C	61°F16°C	0.13 in3.3 mm· 23%	57%	Showers	N 7 mph11 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Breezy from the N at 7 mph11 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the NNE at 7 mph11 km/h. 17% chance of drizzle throughout the night.
	MondaySep 21	75°F24°C	58°F14°C	0.1 in2.5 mm· 14%	57%	Drizzle	NE 7 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 58°F14°C. Breezy from the NE at 7 mph11 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 60°F16°C. Light wind from the NE around 6 mph10 km/h. 11% chance of drizzle throughout the night.
	TuesdaySep 22	76°F24°C	57°F14°C	0.09 in2.4 mm· 13%	56%	Showers	ENE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 57°F14°C. Light wind from the ENE around 6 mph10 km/h. 13% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Light wind from the ENE around 6 mph10 km/h. 10% chance of drizzle 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