Current Conditions

Saint Peters, Missouri

69°F21°C

Clear

Wind

SW 8 mph12 km/h

Humidity

65%

Cloud Cover

As of Tuesday, October 13, 2026 at 7:03 AM CDT

Today's Outlook

Day

Mostly clear and hot, with a high of 89°F32°C and morning low of 69°F20°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h.

Night

Mostly clear, with a low around 69°F21°C. Breezy from the SW at 8 to 10 mph12 to 15 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 89°F32°CFeels 93°F34°C	Low 69°F20°C	Precip 0 in0 mm—	Cloud 14%	Wind SW 7 mph12 km/h	Tuesday: Mostly clear and hot, with a high of 89°F32°C and morning low of 69°F20°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. Tuesday Night: Mostly clear, with a low around 69°F21°C. Breezy from the SW at 8 to 10 mph12 to 15 km/h.
Rain	High 79°F26°C	Low 67°F19°C	Precip 0.46 in11.6 mm90%	Cloud 89%	Wind NW 6 mph9 km/h	Wednesday: Overcast and warm, with a high of 71°F22°C. Light wind from the NNW around 5 mph8 km/h. 90% chance of rain in the morning. Humid. Wednesday Night: Overcast, with a low around 67°F19°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. 35% chance of light rain before dawn.
Rain	High 73°F23°C	Low 63°F17°C	Precip 0.41 in10.3 mm81%	Cloud 84%	Wind SW 8 mph12 km/h	Thursday: Overcast and warm, with a high of 73°F23°C and morning low of 65°F18°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. 81% chance of rain in the morning. Humid. Thursday Night: Overcast, with a low around 63°F17°C. Breezy from the WNW at 8 to 12 mph12 to 20 km/h. 60% chance of light rain overnight.
Light Rain	High 60°F15°C	Low 47°F9°CFeels 43°F6°C	Precip 0.09 in2.2 mm54%	Cloud 77%	Wind NW 14 mph22 km/h	Friday: Overcast and mild, with a high of 54°F12°C. Windy from the NW at 15 to 16 mph24 to 26 km/h. 17% chance of drizzle in the morning. Dry air. Friday Night: Mostly cloudy, with a low around 47°F9°C. Breezy from the NW at 13 to 14 mph20 to 23 km/h. 54% chance of light rain overnight.
Clear	High 55°F13°C	Low 39°F4°CFeels 34°F1°C	Precip 0 in0.1 mm2%	Cloud 8%	Wind N 6 mph10 km/h	Saturday: Mostly clear and mild, with a high of 55°F13°C and morning low of 39°F4°C. Light wind from the NNE around 5 mph8 km/h. Dry air. Saturday Night: Mostly clear, with a low around 39°F4°C. Breezy from the N at 7 to 10 mph11 to 15 km/h.
Clear	High 61°F16°C	Low 38°F3°CFeels 33°F1°C	Precip 0 in0 mm—	Cloud 6%	Wind SSE 7 mph12 km/h	Sunday: Mostly clear and mild, with a high of 61°F16°C and morning low of 38°F3°C. Breezy from the SSE at 7 to 8 mph12 to 12 km/h. Dry air. Sunday Night: Mostly clear, with a low around 38°F4°C. Breezy from the SSE at 7 to 8 mph12 to 12 km/h.
Clear	High 66°F19°C	Low 44°F7°CFeels 41°F5°C	Precip 0 in0 mm—	Cloud 32%	Wind SSE 7 mph11 km/h	Monday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 44°F7°C. Light wind from the S around 6 mph10 km/h. Dry air. Monday Night: Partly cloudy, with a low around 45°F7°C. Breezy from the SSE at 7 to 8 mph11 to 12 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdayOct 13	89°F32°C Feels 93°F34°C	69°F20°C	0 in0 mm· —	14%	Clear	SW 7 mph12 km/h
DayMostly clear and hot, with a high of 89°F32°C and morning low of 69°F20°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. NightMostly clear, with a low around 69°F21°C. Breezy from the SW at 8 to 10 mph12 to 15 km/h.
	WednesdayOct 14	79°F26°C	67°F19°C	0.46 in11.6 mm· 90%	89%	Rain	NW 6 mph9 km/h
DayOvercast and warm, with a high of 71°F22°C. Light wind from the NNW around 5 mph8 km/h. 90% chance of rain in the morning. Humid. NightOvercast, with a low around 67°F19°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. 35% chance of light rain before dawn.
	ThursdayOct 15	73°F23°C	63°F17°C	0.41 in10.3 mm· 81%	84%	Rain	SW 8 mph12 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 65°F18°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. 81% chance of rain in the morning. Humid. NightOvercast, with a low around 63°F17°C. Breezy from the WNW at 8 to 12 mph12 to 20 km/h. 60% chance of light rain overnight.
	FridayOct 16	60°F15°C	47°F9°C Feels 43°F6°C	0.09 in2.2 mm· 54%	77%	Light Rain	NW 14 mph22 km/h
DayOvercast and mild, with a high of 54°F12°C. Windy from the NW at 15 to 16 mph24 to 26 km/h. 17% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 47°F9°C. Breezy from the NW at 13 to 14 mph20 to 23 km/h. 54% chance of light rain overnight.
	SaturdayOct 17	55°F13°C	39°F4°C Feels 34°F1°C	0 in0.1 mm· 2%	8%	Clear	N 6 mph10 km/h
DayMostly clear and mild, with a high of 55°F13°C and morning low of 39°F4°C. Light wind from the NNE around 5 mph8 km/h. Dry air. NightMostly clear, with a low around 39°F4°C. Breezy from the N at 7 to 10 mph11 to 15 km/h.
	SundayOct 18	61°F16°C	38°F3°C Feels 33°F1°C	0 in0 mm· —	6%	Clear	SSE 7 mph12 km/h
DayMostly clear and mild, with a high of 61°F16°C and morning low of 38°F3°C. Breezy from the SSE at 7 to 8 mph12 to 12 km/h. Dry air. NightMostly clear, with a low around 38°F4°C. Breezy from the SSE at 7 to 8 mph12 to 12 km/h.
	MondayOct 19	66°F19°C	44°F7°C Feels 41°F5°C	0 in0 mm· —	32%	Clear	SSE 7 mph11 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 44°F7°C. Light wind from the S around 6 mph10 km/h. Dry air. NightPartly cloudy, with a low around 45°F7°C. Breezy from the SSE at 7 to 8 mph11 to 12 km/h.
	TuesdayOct 20	70°F21°C	49°F9°C Feels 46°F8°C	0.01 in0.2 mm· 3%	30%	Clear	SSE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 49°F9°C. Light wind from the SSE around 6 mph10 km/h. NightPartly cloudy, with a low around 49°F9°C. Breezy from the SSE at 7 mph11 km/h.
	WednesdayOct 21	71°F22°C	54°F12°C	0.06 in1.6 mm· 11%	37%	Drizzle	SSE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 54°F12°C. Breezy from the SSE at 7 mph11 km/h. 11% chance of drizzle in the morning. NightPartly cloudy, with a low around 55°F13°C. Breezy from the SSE at 7 mph11 km/h. 11% chance of drizzle before dawn.
	ThursdayOct 22	72°F22°C	58°F14°C	0.12 in3 mm· 23%	64%	Drizzle	S 7 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F14°C. Breezy from the S at 7 mph11 km/h. 23% chance of drizzle in the morning. NightMostly cloudy, with a low around 58°F15°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 15% chance of drizzle overnight.
	FridayOct 23	70°F21°C	59°F15°C	0.19 in4.7 mm· 27%	72%	Light Rain	S 8 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the S at 8 mph12 km/h. 23% chance of light rain in the morning. NightMostly cloudy, with a low around 59°F15°C. Breezy from the S at 8 mph12 km/h. 27% chance of light rain overnight.
	SaturdayOct 24	67°F20°C	58°F14°C	0.24 in6.1 mm· 32%	70%	Showers	SW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 58°F14°C. Breezy from the SW at 8 mph12 km/h. 32% chance of light rain in the morning. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SSW at 8 mph12 km/h. 32% chance of showers overnight.
	SundayOct 25	63°F17°C	52°F11°C	0.09 in2.4 mm· 18%	61%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the W at 7 mph11 km/h. 18% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle overnight.
	MondayOct 26	60°F15°C	49°F9°C Feels 46°F8°C	0.13 in3.2 mm· 16%	56%	Showers	WNW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 49°F9°C. Breezy from the WNW at 7 mph10 km/h. 16% chance of showers in the morning. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle overnight.
	TuesdayOct 27	59°F15°C	48°F9°C Feels 45°F7°C	0.08 in2 mm· 14%	56%	Drizzle	W 7 mph10 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 48°F9°C. Breezy from the W at 7 mph11 km/h. 14% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 48°F9°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle overnight.

Nearby Cities

O'Fallon4 mi6 km Saint Charles8 mi13 km Chesterfield10 mi16 km Maryland Heights12 mi20 km Wentzville12 mi20 km Hazelwood14 mi22 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 38.8003°N, 90.6265°W·Elevation: 134m·Timezone: America/Chicago·Population: 52,575