Current Conditions

Lake Forest, Illinois

60°F15°C

Partly Cloudy

Wind

ENE 14 mph22 km/h

Humidity

78%

Cloud Cover

71%

As of Wednesday, September 23, 2026 at 9:08 AM CDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 62°F17°C. Breezy from the ENE at 13 to 14 mph21 to 22 km/h.

Night

Mostly cloudy, with a low around 63°F17°C. Breezy from the NE at 10 mph16 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 63°F17°C	Low 58°F15°C	Precip 0 in0.1 mm1%	Cloud 69%	Wind NE 12 mph19 km/h	Wednesday: Mostly cloudy and mild, with a high of 62°F17°C. Breezy from the ENE at 13 to 14 mph21 to 22 km/h. Wednesday Night: Mostly cloudy, with a low around 63°F17°C. Breezy from the NE at 10 mph16 km/h.
Partly Cloudy	High 63°F17°C	Low 60°F15°C	Precip 0 in0 mm—	Cloud 41%	Wind E 9 mph15 km/h	Thursday: Partly cloudy and mild, with a high of 63°F17°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. Thursday Night: Mostly cloudy, with a low around 60°F16°C. Breezy from the ENE at 9 to 11 mph14 to 17 km/h.
Partly Cloudy	High 63°F17°C	Low 59°F15°C	Precip 0 in0.1 mm3%	Cloud 65%	Wind E 7 mph12 km/h	Friday: Mostly cloudy and mild, with a high of 63°F17°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. Friday Night: Mostly cloudy, with a low around 60°F16°C. Breezy from the E at 8 mph13 km/h.
Partly Cloudy	High 64°F18°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 46%	Wind ENE 7 mph12 km/h	Saturday: Partly cloudy and mild, with a high of 64°F18°C and morning low of 59°F15°C. Breezy from the E at 7 to 8 mph12 to 12 km/h. Saturday Night: Partly cloudy, with a low around 60°F16°C. Breezy from the ENE at 8 mph12 km/h.
Clear	High 66°F19°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 37%	Wind NE 6 mph10 km/h	Sunday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the NE at 6 to 8 mph9 to 13 km/h. Sunday Night: Partly cloudy, with a low around 60°F16°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h.
Clear	High 67°F20°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 15%	Wind NE 6 mph9 km/h	Monday: Mostly clear and mild, with a high of 67°F20°C and morning low of 58°F15°C. Light wind from the NNE around 5 mph9 km/h. Monday Night: Mostly clear, with a low around 59°F15°C. Light wind from the NE around 6 mph10 km/h.
Showers	High 69°F20°C	Low 58°F15°C	Precip 0.05 in1.2 mm21%	Cloud 69%	Wind SSE 8 mph13 km/h	Tuesday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F15°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h. Tuesday Night: Mostly cloudy, with a low around 60°F15°C. Breezy from the SSE at 8 to 11 mph13 to 18 km/h. 21% chance of showers in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	63°F17°C	58°F15°C	0 in0.1 mm· 1%	69%	Partly Cloudy	NE 12 mph19 km/h
DayMostly cloudy and mild, with a high of 62°F17°C. Breezy from the ENE at 13 to 14 mph21 to 22 km/h. NightMostly cloudy, with a low around 63°F17°C. Breezy from the NE at 10 mph16 km/h.
	ThursdaySep 24	63°F17°C	60°F15°C	0 in0 mm· —	41%	Partly Cloudy	E 9 mph15 km/h
DayPartly cloudy and mild, with a high of 63°F17°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. NightMostly cloudy, with a low around 60°F16°C. Breezy from the ENE at 9 to 11 mph14 to 17 km/h.
	FridaySep 25	63°F17°C	59°F15°C	0 in0.1 mm· 3%	65%	Partly Cloudy	E 7 mph12 km/h
DayMostly cloudy and mild, with a high of 63°F17°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. NightMostly cloudy, with a low around 60°F16°C. Breezy from the E at 8 mph13 km/h.
	SaturdaySep 26	64°F18°C	59°F15°C	0 in0 mm· —	46%	Partly Cloudy	ENE 7 mph12 km/h
DayPartly cloudy and mild, with a high of 64°F18°C and morning low of 59°F15°C. Breezy from the E at 7 to 8 mph12 to 12 km/h. NightPartly cloudy, with a low around 60°F16°C. Breezy from the ENE at 8 mph12 km/h.
	SundaySep 27	66°F19°C	59°F15°C	0 in0 mm· —	37%	Clear	NE 6 mph10 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the NE at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 60°F16°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h.
	MondaySep 28	67°F20°C	58°F15°C	0 in0 mm· —	15%	Clear	NE 6 mph9 km/h
DayMostly clear and mild, with a high of 67°F20°C and morning low of 58°F15°C. Light wind from the NNE around 5 mph9 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the NE around 6 mph10 km/h.
	TuesdaySep 29	69°F20°C	58°F15°C	0.05 in1.2 mm· 21%	69%	Showers	SSE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F15°C. Breezy from the SSE at 8 to 10 mph13 to 16 km/h. NightMostly cloudy, with a low around 60°F15°C. Breezy from the SSE at 8 to 11 mph13 to 18 km/h. 21% chance of showers in the evening.
	WednesdaySep 30	65°F19°C	61°F16°C	0.31 in7.8 mm· 39%	83%	Light Rain	SSW 11 mph18 km/h
DayOvercast and mild, with a high of 65°F19°C and morning low of 61°F16°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 39% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Breezy from the S at 11 mph18 km/h. 38% chance of light rain throughout the night.
	ThursdayOct 1	65°F18°C	59°F15°C	0.21 in5.4 mm· 26%	67%	Showers	W 11 mph18 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 59°F15°C. Breezy from the W at 12 mph19 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F16°C. Breezy from the WSW at 11 to 12 mph18 to 19 km/h. 26% chance of showers throughout the night.
	FridayOct 2	65°F18°C	59°F15°C	0.23 in5.9 mm· 27%	64%	Showers	SSW 12 mph19 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 59°F15°C. Breezy from the S at 12 mph19 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the SSW at 12 mph19 km/h. 27% chance of showers throughout the night.
	SaturdayOct 3	65°F18°C	59°F15°C	0.13 in3.4 mm· 19%	60%	Showers	WSW 12 mph19 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 59°F15°C. Breezy from the WSW at 12 mph19 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F16°C. Breezy from the WSW at 11 to 12 mph18 to 19 km/h. 19% chance of showers throughout the night.
	SundayOct 4	64°F18°C	57°F14°C	0.12 in3 mm· 16%	54%	Showers	W 12 mph19 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 57°F14°C. Breezy from the W at 12 to 13 mph19 to 20 km/h. 15% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 58°F15°C. Breezy from the W at 11 to 12 mph18 to 19 km/h. 16% chance of showers throughout the night.
	MondayOct 5	62°F17°C	55°F13°C	0.12 in3 mm· 18%	52%	Showers	W 12 mph20 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 55°F13°C. Breezy from the W at 12 mph20 km/h. 17% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 12 to 13 mph20 to 20 km/h. 18% chance of drizzle throughout the night.
	TuesdayOct 6	62°F17°C	55°F13°C	0.16 in4 mm· 21%	49%	Showers	W 12 mph20 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 55°F13°C. Breezy from the W at 13 mph20 km/h. 21% chance of showers throughout the day. Dry air. NightPartly cloudy, with a low around 56°F13°C. Breezy from the W at 12 to 13 mph20 to 21 km/h. 17% chance of showers throughout the night.
	WednesdayOct 7	61°F16°C	54°F12°C	0.06 in1.5 mm· 15%	45%	Drizzle	WNW 13 mph20 km/h
DayPartly cloudy and mild, with a high of 61°F16°C and morning low of 54°F12°C. Breezy from the WNW at 13 mph21 km/h. 13% chance of drizzle around midday. Dry air. NightPartly cloudy, with a low around 55°F13°C. Breezy from the WNW at 13 mph20 km/h. 15% chance of drizzle throughout the night.

Nearby Cities

North Chicago5 mi7 km Highland Park6 mi9 km Libertyville6 mi10 km Deerfield6 mi10 km Waukegan7 mi12 km Vernon Hills8 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: 42.2586°N, 87.8406°W·Elevation: 210m·Timezone: America/Chicago·Population: 19,408