Current Conditions

St. Charles, Illinois

59°F15°C

Drizzle

Wind

NE 9 mph14 km/h

Humidity

79%

Cloud Cover

84%

As of Monday, September 21, 2026 at 10:48 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 56°F13°C. Breezy from the ENE at 8 to 9 mph13 to 15 km/h. 20% chance of drizzle in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 60°F16°C	Low 55°F13°C	Precip 0.04 in1 mm22%	Cloud 84%	Wind ENE 9 mph15 km/h	Tuesday: Overcast and mild, with a high of 60°F16°C and morning low of 55°F13°C. Breezy from the ENE at 10 to 12 mph17 to 19 km/h. 22% chance of drizzle in the morning. Dry air. Tuesday Night: Mostly cloudy, with a low around 56°F13°C. Breezy from the ENE at 8 to 9 mph13 to 15 km/h. 20% chance of drizzle in the evening.
Partly Cloudy	High 65°F19°C	Low 57°F14°C	Precip 0 in0.1 mm6%	Cloud 71%	Wind NE 9 mph14 km/h	Wednesday: Mostly cloudy and mild, with a high of 65°F19°C and morning low of 57°F14°C. Breezy from the NE at 10 to 12 mph17 to 19 km/h. Wednesday Night: Mostly cloudy, with a low around 57°F14°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
Partly Cloudy	High 67°F19°C	Low 55°F13°C	Precip 0 in0.1 mm2%	Cloud 64%	Wind ENE 6 mph10 km/h	Thursday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 55°F13°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. Thursday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph9 km/h.
Partly Cloudy	High 69°F20°C	Low 57°F14°C	Precip 0.01 in0.2 mm4%	Cloud 68%	Wind ENE 5 mph8 km/h	Friday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 57°F14°C. Light wind from the ENE around 5 mph8 km/h. Friday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 5 mph7 km/h.
Partly Cloudy	High 70°F21°C	Low 51°F11°C	Precip 0 in0.1 mm2%	Cloud 58%	Wind E 5 mph8 km/h	Saturday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 51°F11°C. Light wind from the E around 5 mph8 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the ENE around 5 mph8 km/h.
Partly Cloudy	High 72°F22°C	Low 51°F11°C	Precip 0 in0.1 mm3%	Cloud 56%	Wind ENE 4 mph7 km/h	Sunday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 51°F11°C. Light wind from the ENE around 4 mph6 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 52°F11°C. Light wind from the ENE around 4 mph7 km/h.
Clear	High 73°F23°C	Low 52°F11°C	Precip 0 in0.1 mm2%	Cloud 32%	Wind NE 4 mph7 km/h	Monday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the ENE around 4 mph7 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 22	60°F16°C	55°F13°C	0.04 in1 mm· 22%	84%	Drizzle	ENE 9 mph15 km/h
DayOvercast and mild, with a high of 60°F16°C and morning low of 55°F13°C. Breezy from the ENE at 10 to 12 mph17 to 19 km/h. 22% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 56°F13°C. Breezy from the ENE at 8 to 9 mph13 to 15 km/h. 20% chance of drizzle in the evening.
	WednesdaySep 23	65°F19°C	57°F14°C	0 in0.1 mm· 6%	71%	Partly Cloudy	NE 9 mph14 km/h
DayMostly cloudy and mild, with a high of 65°F19°C and morning low of 57°F14°C. Breezy from the NE at 10 to 12 mph17 to 19 km/h. NightMostly cloudy, with a low around 57°F14°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
	ThursdaySep 24	67°F19°C	55°F13°C	0 in0.1 mm· 2%	64%	Partly Cloudy	ENE 6 mph10 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 55°F13°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. NightMostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph9 km/h.
	FridaySep 25	69°F20°C	57°F14°C	0.01 in0.2 mm· 4%	68%	Partly Cloudy	ENE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 57°F14°C. Light wind from the ENE around 5 mph8 km/h. NightMostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 5 mph7 km/h.
	SaturdaySep 26	70°F21°C	51°F11°C	0 in0.1 mm· 2%	58%	Partly Cloudy	E 5 mph8 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 51°F11°C. Light wind from the E around 5 mph8 km/h. Dry air. NightMostly cloudy, with a low around 53°F12°C. Light wind from the ENE around 5 mph8 km/h.
	SundaySep 27	72°F22°C	51°F11°C	0 in0.1 mm· 3%	56%	Partly Cloudy	ENE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 51°F11°C. Light wind from the ENE around 4 mph6 km/h. Dry air. NightMostly cloudy, with a low around 52°F11°C. Light wind from the ENE around 4 mph7 km/h.
	MondaySep 28	73°F23°C	52°F11°C	0 in0.1 mm· 2%	32%	Clear	NE 4 mph7 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph6 km/h. NightPartly cloudy, with a low around 53°F12°C. Light wind from the ENE around 4 mph7 km/h.
	TuesdaySep 29	74°F23°C	52°F11°C	0.06 in1.4 mm· 17%	55%	Drizzle	SSE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 52°F11°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h. 17% chance of drizzle in the evening.
	WednesdaySep 30	71°F22°C	57°F14°C	0.18 in4.6 mm· 22%	73%	Light Rain	S 8 mph12 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 57°F14°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 22% chance of light rain throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the S at 7 mph12 km/h. 22% chance of light rain throughout the night.
	ThursdayOct 1	70°F21°C	56°F13°C	0.16 in4 mm· 21%	64%	Showers	ESE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the ESE at 7 to 8 mph12 to 12 km/h. 19% chance of showers throughout the night.
	FridayOct 2	70°F21°C	56°F13°C	0.11 in2.8 mm· 20%	59%	Showers	ESE 7 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the ESE at 8 to 9 mph13 to 14 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the E at 7 mph11 km/h. 19% chance of showers throughout the night.
	SaturdayOct 3	71°F22°C	55°F13°C	0.07 in1.9 mm· 15%	57%	Drizzle	SSE 7 mph12 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 55°F13°C. Breezy from the S at 8 to 9 mph12 to 14 km/h. 15% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SE at 7 to 8 mph11 to 12 km/h. 15% chance of drizzle throughout the night.
	SundayOct 4	70°F21°C	56°F13°C	0.14 in3.6 mm· 22%	61%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the SW at 9 mph14 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SSW at 7 to 8 mph12 to 12 km/h. 16% chance of showers throughout the night.
	MondayOct 5	69°F20°C	55°F13°C	0.15 in3.7 mm· 24%	59%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 55°F13°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 7 mph12 km/h. 18% chance of showers throughout the night.
	TuesdayOct 6	70°F21°C	54°F12°C	0.1 in2.5 mm· 20%	53%	Drizzle	WSW 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 WSW at 7 to 8 mph12 to 13 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 7 mph11 km/h. 20% 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