Current Conditions

St. Charles, Illinois

74°F23°C

Rain

Wind

SW 7 mph11 km/h

Humidity

65%

Cloud Cover

97%

As of Wednesday, September 9, 2026 at 12:56 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 99% chance of rain throughout the day. Humid.

Night

Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 mph11 km/h. 62% chance of light rain before dawn.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 80°F27°C	Low 71°F22°C	Precip 0.45 in11.5 mm99%	Cloud 87%	Wind WSW 8 mph12 km/h	Wednesday: Overcast and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 99% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 mph11 km/h. 62% chance of light rain before dawn.
Partly Cloudy	High 78°F26°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 70%	Wind NNE 5 mph8 km/h	Thursday: Overcast and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the NNE around 5 mph8 km/h. Thursday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the N around 5 mph9 km/h.
Clear	High 81°F27°C	Low 57°F14°C	Precip 0 in0.1 mm2%	Cloud 16%	Wind SE 5 mph8 km/h	Friday: Mostly clear and warm, with a high of 81°F27°C and morning low of 57°F14°C. Light wind from the SSE around 5 mph9 km/h. Friday Night: Mostly clear, with a low around 58°F15°C. Light wind from the SE around 5 mph8 km/h.
Drizzle	High 84°F29°C	Low 64°F18°C	Precip 0.03 in0.8 mm19%	Cloud 50%	Wind SW 7 mph11 km/h	Saturday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 64°F18°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 14% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 65°F18°C. Light wind from the SW around 6 mph9 km/h. 19% chance of drizzle in the evening.
Drizzle	High 76°F24°C	Low 62°F17°C	Precip 0.06 in1.4 mm10%	Cloud 37%	Wind N 7 mph11 km/h	Sunday: Partly cloudy and warm, with a high of 76°F24°C and morning low of 62°F17°C. Breezy from the NNW at 7 to 8 mph12 to 12 km/h. 10% chance of drizzle in the morning. Sunday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle throughout the night.
Showers	High 79°F26°C	Low 58°F15°C	Precip 0.13 in3.3 mm22%	Cloud 57%	Wind SE 9 mph14 km/h	Monday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 58°F15°C. Breezy from the SE at 9 to 12 mph15 to 19 km/h. 22% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the SE at 9 to 12 mph14 to 20 km/h. 15% chance of drizzle throughout the night.
Light Rain	High 82°F28°C	Low 69°F21°C	Precip 0.21 in5.4 mm32%	Cloud 73%	Wind SW 10 mph16 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F21°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. 27% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SSW at 9 to 13 mph15 to 20 km/h. 32% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	80°F27°C	71°F22°C	0.45 in11.5 mm· 99%	87%	Rain	WSW 8 mph12 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 99% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 mph11 km/h. 62% chance of light rain before dawn.
	ThursdaySep 10	78°F26°C	64°F18°C	0 in0 mm· —	70%	Partly Cloudy	NNE 5 mph8 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the NNE around 5 mph8 km/h. NightMostly cloudy, with a low around 64°F18°C. Light wind from the N around 5 mph9 km/h.
	FridaySep 11	81°F27°C	57°F14°C	0 in0.1 mm· 2%	16%	Clear	SE 5 mph8 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 57°F14°C. Light wind from the SSE around 5 mph9 km/h. NightMostly clear, with a low around 58°F15°C. Light wind from the SE around 5 mph8 km/h.
	SaturdaySep 12	84°F29°C	64°F18°C	0.03 in0.8 mm· 19%	50%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 64°F18°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 14% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 65°F18°C. Light wind from the SW around 6 mph9 km/h. 19% chance of drizzle in the evening.
	SundaySep 13	76°F24°C	62°F17°C	0.06 in1.4 mm· 10%	37%	Drizzle	N 7 mph11 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 62°F17°C. Breezy from the NNW at 7 to 8 mph12 to 12 km/h. 10% chance of drizzle in the morning. NightPartly cloudy, with a low around 62°F17°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle throughout the night.
	MondaySep 14	79°F26°C	58°F15°C	0.13 in3.3 mm· 22%	57%	Showers	SE 9 mph14 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 58°F15°C. Breezy from the SE at 9 to 12 mph15 to 19 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Breezy from the SE at 9 to 12 mph14 to 20 km/h. 15% chance of drizzle throughout the night.
	TuesdaySep 15	82°F28°C	69°F21°C	0.21 in5.4 mm· 32%	73%	Light Rain	SW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F21°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. 27% chance of light rain throughout the day. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SSW at 9 to 13 mph15 to 20 km/h. 32% chance of light rain throughout the night.
	WednesdaySep 16	78°F26°C	64°F18°C	0.27 in6.8 mm· 38%	70%	Showers	E 6 mph10 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 32% chance of light rain throughout the day. NightMostly cloudy, with a low around 65°F19°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 38% chance of showers throughout the night.
	ThursdaySep 17	82°F28°C	68°F20°C	0.22 in5.6 mm· 27%	54%	Showers	SW 8 mph14 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SW at 9 to 10 mph15 to 17 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F20°C. Breezy from the SSW at 8 mph13 km/h. 26% chance of showers throughout the night.
	FridaySep 18	77°F25°C	64°F18°C	0.2 in5.1 mm· 23%	48%	Showers	W 8 mph13 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the W at 9 to 10 mph14 to 15 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 64°F18°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 23% chance of showers throughout the night.
	SaturdaySep 19	72°F22°C	58°F14°C	0.2 in5.2 mm· 28%	54%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F14°C. Breezy from the WNW at 8 to 9 mph14 to 15 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the NW at 7 mph12 km/h. 28% chance of showers throughout the night.
	SundaySep 20	68°F20°C	54°F12°C	0.13 in3.4 mm· 19%	51%	Showers	N 8 mph12 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 54°F12°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 17% chance of showers throughout the day. Dry air. NightPartly cloudy, with a low around 56°F13°C. Breezy from the N at 7 mph11 km/h. 19% chance of showers throughout the night.
	MondaySep 21	68°F20°C	52°F11°C	0.09 in2.3 mm· 11%	50%	Drizzle	NE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 52°F11°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. 11% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 53°F12°C. Light wind from the NE around 6 mph10 km/h. 10% chance of drizzle throughout the night.
	TuesdaySep 22	70°F21°C	52°F11°C	0.08 in2 mm· 11%	54%	Drizzle	E 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 52°F11°C. Breezy from the ESE at 7 to 8 mph12 to 13 km/h. 11% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the E at 7 mph11 km/h. 11% chance of drizzle throughout the night.
	WednesdaySep 23	70°F21°C	54°F12°C	0.13 in3.3 mm· 17%	57%	Showers	ESE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the ESE at 7 to 8 mph12 to 13 km/h. 17% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the ESE at 7 mph11 km/h. 15% chance of drizzle throughout the night.

Nearby Cities

Geneva2 mi3 km Batavia4 mi7 km Wasco5 mi8 km South Elgin6 mi9 km West Chicago6 mi9 km North Aurora8 mi12 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: 41.9142°N, 88.3087°W·Elevation: 223m·Timezone: America/Chicago·Population: 32,974