Current Conditions

Round Lake Beach, Illinois

61°F16°C

Partly Cloudy

Wind

ENE 11 mph18 km/h

Humidity

76%

Cloud Cover

73%

As of Wednesday, September 23, 2026 at 10:40 AM CDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the ENE at 11 mph17 km/h.

Night

Mostly cloudy, with a low around 61°F16°C. Breezy from the NE at 8 mph12 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 64°F18°C	Low 56°F13°C	Precip 0 in0.1 mm—	Cloud 69%	Wind NE 10 mph15 km/h	Wednesday: Mostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the ENE at 11 mph17 km/h. Wednesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the NE at 8 mph12 km/h.
Partly Cloudy	High 65°F18°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 44%	Wind E 7 mph12 km/h	Thursday: Partly cloudy and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h.
Partly Cloudy	High 65°F18°C	Low 57°F14°C	Precip 0 in0.1 mm5%	Cloud 64%	Wind E 5 mph9 km/h	Friday: Mostly cloudy and mild, with a high of 65°F18°C and morning low of 58°F14°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. Friday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the E around 5 mph9 km/h.
Partly Cloudy	High 67°F19°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 45%	Wind ENE 6 mph9 km/h	Saturday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 53°F12°C. Light wind from the E around 6 mph9 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the ENE around 5 mph9 km/h.
Clear	High 69°F21°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 37%	Wind NE 5 mph7 km/h	Sunday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 52°F11°C. Light wind from the NE around 5 mph7 km/h. Sunday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the NE around 5 mph7 km/h.
Clear	High 71°F22°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 17%	Wind NE 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 71°F22°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph6 km/h. Monday Night: Mostly clear, with a low around 53°F12°C. Light wind from the NE around 5 mph8 km/h.
Light Rain	High 72°F22°C	Low 53°F12°C	Precip 0.05 in1.3 mm28%	Cloud 72%	Wind S 7 mph11 km/h	Tuesday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 53°F12°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle around midday. Tuesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the S at 7 to 8 mph11 to 14 km/h. 28% chance of light rain in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	64°F18°C	56°F13°C	0 in0.1 mm· —	69%	Partly Cloudy	NE 10 mph15 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the ENE at 11 mph17 km/h. NightMostly cloudy, with a low around 61°F16°C. Breezy from the NE at 8 mph12 km/h.
	ThursdaySep 24	65°F18°C	57°F14°C	0 in0 mm· —	44%	Partly Cloudy	E 7 mph12 km/h
DayPartly cloudy and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. NightMostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h.
	FridaySep 25	65°F18°C	57°F14°C	0 in0.1 mm· 5%	64%	Partly Cloudy	E 5 mph9 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 58°F14°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. NightMostly cloudy, with a low around 57°F14°C. Light wind from the E around 5 mph9 km/h.
	SaturdaySep 26	67°F19°C	53°F12°C	0 in0 mm· —	45%	Partly Cloudy	ENE 6 mph9 km/h
DayPartly cloudy and mild, with a high of 67°F19°C and morning low of 53°F12°C. Light wind from the E around 6 mph9 km/h. Dry air. NightPartly cloudy, with a low around 54°F12°C. Light wind from the ENE around 5 mph9 km/h.
	SundaySep 27	69°F21°C	52°F11°C	0 in0 mm· —	37%	Clear	NE 5 mph7 km/h
DayPartly cloudy and warm, with a high of 69°F21°C and morning low of 52°F11°C. Light wind from the NE around 5 mph7 km/h. NightPartly cloudy, with a low around 53°F12°C. Light wind from the NE around 5 mph7 km/h.
	MondaySep 28	71°F22°C	52°F11°C	0 in0 mm· —	17%	Clear	NE 4 mph7 km/h
DayMostly clear and warm, with a high of 71°F22°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph6 km/h. NightMostly clear, with a low around 53°F12°C. Light wind from the NE around 5 mph8 km/h.
	TuesdaySep 29	72°F22°C	53°F12°C	0.05 in1.3 mm· 28%	72%	Light Rain	S 7 mph11 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 53°F12°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle around midday. NightMostly cloudy, with a low around 55°F13°C. Breezy from the S at 7 to 8 mph11 to 14 km/h. 28% chance of light rain in the evening.
	WednesdaySep 30	67°F20°C	60°F15°C	0.26 in6.6 mm· 38%	79%	Light Rain	SSW 9 mph14 km/h
DayOvercast and mild, with a high of 67°F20°C and morning low of 60°F15°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 31% chance of light rain throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the SSW at 9 mph14 km/h. 38% chance of light rain throughout the night.
	ThursdayOct 1	67°F19°C	57°F14°C	0.16 in4 mm· 24%	67%	Showers	WSW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 57°F14°C. Breezy from the WSW at 10 mph15 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 9 mph14 km/h. 24% chance of showers throughout the night.
	FridayOct 2	67°F20°C	57°F14°C	0.18 in4.5 mm· 22%	60%	Showers	SSW 9 mph14 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 57°F14°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SSW at 9 mph14 km/h. 22% chance of showers throughout the night.
	SaturdayOct 3	67°F19°C	57°F14°C	0.15 in3.7 mm· 20%	67%	Showers	SW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 57°F14°C. Breezy from the SW at 10 mph16 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 9 mph14 km/h. 20% chance of showers throughout the night.
	SundayOct 4	64°F18°C	56°F13°C	0.15 in3.8 mm· 23%	60%	Showers	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the W at 11 mph17 km/h. 23% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 57°F14°C. Breezy from the W at 10 mph15 km/h. 21% chance of showers throughout the night.
	MondayOct 5	63°F17°C	52°F11°C	0.11 in2.7 mm· 16%	52%	Drizzle	W 10 mph16 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 10 to 11 mph17 to 18 km/h. 16% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the WSW at 10 mph15 km/h. 14% chance of drizzle throughout the night.
	TuesdayOct 6	63°F17°C	52°F11°C	0.09 in2.3 mm· 15%	48%	Drizzle	W 10 mph16 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 10 to 11 mph17 to 18 km/h. 14% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the W at 9 to 10 mph15 to 15 km/h. 15% chance of drizzle throughout the night.
	WednesdayOct 7	62°F17°C	49°F10°C Feels 46°F8°C	0.05 in1.3 mm· 12%	39%	Drizzle	WNW 9 mph15 km/h
DayPartly cloudy and mild, with a high of 62°F17°C and morning low of 49°F10°C. Breezy from the WNW at 10 mph16 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 51°F11°C. Breezy from the WNW at 9 to 10 mph15 to 15 km/h.

Nearby Cities

Round Lake1 mi2 km Grayslake3 mi5 km Mundelein9 mi14 km Libertyville9 mi15 km McHenry9 mi15 km Gurnee10 mi15 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: 42.3717°N, 88.0901°W·Elevation: 233m·Timezone: America/Chicago·Population: 27,852