Current Conditions

Arnold, Missouri

91°F33°C

Showers

Wind

SE 6 mph10 km/h

Humidity

37%

Cloud Cover

57%

As of Tuesday, September 8, 2026 at 8:29 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 78°F25°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. 42% chance of showers in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 95°F35°CFeels 100°F38°C	Low 77°F25°C	Precip 0.05 in1.2 mm42%	Cloud 42%	Wind SW 6 mph10 km/h	Wednesday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. 17% 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 mph10 to 12 km/h. 42% chance of showers in the evening.
Rain	High 80°F27°C	Low 73°F23°C	Precip 0.41 in10.4 mm80%	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 NW around 4 mph6 km/h. 80% 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. 67% chance of light rain throughout the night.
Showers	High 85°F29°C	Low 69°F21°C	Precip 0.13 in3.2 mm34%	Cloud 56%	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 E around 4 mph6 km/h. 23% chance of showers throughout the night.
Drizzle	High 89°F32°CFeels 92°F33°C	Low 70°F21°C	Precip 0.05 in1.3 mm16%	Cloud 50%	Wind SW 5 mph7 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 mph7 km/h. 16% chance of drizzle throughout the day. Humid. Saturday Night: Partly cloudy, with a low around 71°F22°C. Light wind from the S around 4 mph7 km/h. 14% chance of drizzle overnight.
Clear	High 89°F32°C	Low 70°F21°C	Precip 0.02 in0.5 mm7%	Cloud 30%	Wind NNE 5 mph8 km/h	Sunday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C. Light wind from the N around 5 mph8 km/h. Humid. Sunday Night: Mostly clear, with a low around 72°F22°C. Light wind from the NE around 5 mph8 km/h.
Clear	High 94°F34°C	Low 70°F21°C	Precip 0.01 in0.2 mm5%	Cloud 23%	Wind SSE 8 mph13 km/h	Monday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 70°F21°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. Monday Night: Mostly clear, with a low around 72°F22°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h.
Drizzle	High 93°F34°C	Low 75°F24°C	Precip 0.04 in1.1 mm15%	Cloud 34%	Wind SSW 7 mph12 km/h	Tuesday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C. Breezy from the SW at 7 mph12 km/h. 13% chance of drizzle around midday. Humid. Tuesday Night: Partly cloudy, with a low around 77°F25°C. Breezy from the S at 7 to 9 mph12 to 15 km/h. 15% chance of drizzle in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	95°F35°C Feels 100°F38°C	77°F25°C	0.05 in1.2 mm· 42%	42%	Showers	SW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. 17% 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 mph10 to 12 km/h. 42% chance of showers in the evening.
	ThursdaySep 10	80°F27°C	73°F23°C	0.41 in10.4 mm· 80%	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 NW around 4 mph6 km/h. 80% 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. 67% chance of light rain throughout the night.
	FridaySep 11	85°F29°C	69°F21°C	0.13 in3.2 mm· 34%	56%	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 E around 4 mph6 km/h. 23% chance of showers throughout the night.
	SaturdaySep 12	89°F32°C Feels 92°F33°C	70°F21°C	0.05 in1.3 mm· 16%	50%	Drizzle	SW 5 mph7 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 mph7 km/h. 16% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 71°F22°C. Light wind from the S around 4 mph7 km/h. 14% chance of drizzle overnight.
	SundaySep 13	89°F32°C	70°F21°C	0.02 in0.5 mm· 7%	30%	Clear	NNE 5 mph8 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 70°F21°C. Light wind from the N around 5 mph8 km/h. Humid. NightMostly clear, with a low around 72°F22°C. Light wind from the NE around 5 mph8 km/h.
	MondaySep 14	94°F34°C	70°F21°C	0.01 in0.2 mm· 5%	23%	Clear	SSE 8 mph13 km/h
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 70°F21°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. NightMostly clear, with a low around 72°F22°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h.
	TuesdaySep 15	93°F34°C	75°F24°C	0.04 in1.1 mm· 15%	34%	Drizzle	SSW 7 mph12 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C. Breezy from the SW at 7 mph12 km/h. 13% chance of drizzle around midday. Humid. NightPartly cloudy, with a low around 77°F25°C. Breezy from the S at 7 to 9 mph12 to 15 km/h. 15% chance of drizzle in the evening.
	WednesdaySep 16	91°F33°C Feels 94°F34°C	73°F23°C	0.11 in2.8 mm· 23%	48%	Showers	SE 6 mph9 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C. Light wind from the SSE around 5 mph9 km/h. 23% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 23% chance of showers throughout the night.
	ThursdaySep 17	90°F32°C Feels 93°F34°C	74°F23°C	0.09 in2.3 mm· 21%	41%	Showers	SSW 7 mph11 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 74°F23°C. Breezy from the SSW at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the S at 7 to 8 mph11 to 12 km/h. 21% chance of showers throughout the night.
	FridaySep 18	83°F28°C	69°F21°C	0.1 in2.5 mm· 20%	46%	Drizzle	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the W at 7 mph12 km/h. 20% chance of drizzle throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle throughout the night.
	SaturdaySep 19	79°F26°C	63°F17°C	0.17 in4.4 mm· 22%	51%	Showers	N 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Light wind from the NW around 6 mph10 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 18% chance of showers throughout the night.
	SundaySep 20	76°F25°C	61°F16°C	0.14 in3.5 mm· 18%	55%	Showers	NNE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Breezy from the NNE at 7 mph11 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 17% chance of showers throughout the night.
	MondaySep 21	74°F24°C	59°F15°C	0.17 in4.4 mm· 21%	60%	Showers	ENE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F24°C and morning low of 59°F15°C. Breezy from the ENE at 7 mph11 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. 16% chance of showers throughout the night.
	TuesdaySep 22	75°F24°C	58°F15°C	0.14 in3.5 mm· 20%	62%	Showers	ENE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 58°F15°C. Breezy from the ENE at 7 mph11 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 60°F16°C. Light wind from the ENE around 6 mph10 km/h. 18% chance of showers throughout the night.
	WednesdaySep 23	76°F24°C	59°F15°C	0.09 in2.3 mm· 19%	59%	Drizzle	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 61°F16°C. Light wind from the ESE around 6 mph10 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Oakville5 mi8 km Mehlville6 mi10 km Concord6 mi10 km Affton8 mi14 km Lemay9 mi14 km Kirkwood11 mi17 km

About This Forecast

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Coordinates: 38.4328°N, 90.3776°W·Elevation: 184m·Timezone: America/Chicago·Population: 21,357