Current Conditions

Round Lake, Illinois

57°F14°C

Partly Cloudy

Wind

ENE 9 mph14 km/h

Humidity

82%

Cloud Cover

64%

As of Wednesday, September 23, 2026 at 3:21 AM CDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 63°F17°C and morning low of 56°F14°C. Breezy from the ENE at 11 mph17 km/h.

Night

Mostly cloudy, with a low around 57°F14°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 63°F17°C	Low 56°F14°C	Precip 0 in0 mm—	Cloud 65%	Wind ENE 10 mph16 km/h	Wednesday: Mostly cloudy and mild, with a high of 63°F17°C and morning low of 56°F14°C. Breezy from the ENE at 11 mph17 km/h. Wednesday Night: Mostly cloudy, with a low around 57°F14°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h.
Clear	High 65°F18°C	Low 56°F14°C	Precip 0 in0 mm—	Cloud 40%	Wind ENE 7 mph12 km/h	Thursday: Partly cloudy and mild, with a high of 65°F18°C and morning low of 56°F14°C. Breezy from the E at 8 mph13 km/h. Thursday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h.
Partly Cloudy	High 66°F19°C	Low 58°F15°C	Precip 0 in0.1 mm9%	Cloud 73%	Wind E 5 mph8 km/h	Friday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the E at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly cloudy, with a low around 58°F15°C. Light wind from the E around 5 mph8 km/h.
Partly Cloudy	High 67°F19°C	Low 54°F12°C	Precip 0 in0 mm—	Cloud 58%	Wind E 6 mph9 km/h	Saturday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. Saturday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph9 km/h.
Partly Cloudy	High 69°F21°C	Low 54°F12°C	Precip 0.01 in0.2 mm4%	Cloud 55%	Wind ENE 4 mph7 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the NE around 4 mph7 km/h. Sunday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 4 mph7 km/h.
Clear	High 71°F22°C	Low 54°F12°C	Precip 0 in0 mm—	Cloud 25%	Wind NE 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 71°F22°C and morning low of 54°F12°C. Light wind from the NE around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the ENE around 5 mph8 km/h.
Light Rain	High 70°F21°C	Low 55°F13°C	Precip 0.06 in1.6 mm23%	Cloud 71%	Wind SSE 7 mph11 km/h	Tuesday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 55°F13°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 14% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 56°F14°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 23% chance of showers in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	63°F17°C	56°F14°C	0 in0 mm· —	65%	Partly Cloudy	ENE 10 mph16 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 56°F14°C. Breezy from the ENE at 11 mph17 km/h. NightMostly cloudy, with a low around 57°F14°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h.
	ThursdaySep 24	65°F18°C	56°F14°C	0 in0 mm· —	40%	Clear	ENE 7 mph12 km/h
DayPartly cloudy and mild, with a high of 65°F18°C and morning low of 56°F14°C. Breezy from the E at 8 mph13 km/h. NightPartly cloudy, with a low around 57°F14°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h.
	FridaySep 25	66°F19°C	58°F15°C	0 in0.1 mm· 9%	73%	Partly Cloudy	E 5 mph8 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the E at 5 to 7 mph8 to 11 km/h. NightMostly cloudy, with a low around 58°F15°C. Light wind from the E around 5 mph8 km/h.
	SaturdaySep 26	67°F19°C	54°F12°C	0 in0 mm· —	58%	Partly Cloudy	E 6 mph9 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph9 km/h.
	SundaySep 27	69°F21°C	54°F12°C	0.01 in0.2 mm· 4%	55%	Partly Cloudy	ENE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the NE around 4 mph7 km/h. NightMostly cloudy, with a low around 56°F13°C. Light wind from the ENE around 4 mph7 km/h.
	MondaySep 28	71°F22°C	54°F12°C	0 in0 mm· —	25%	Clear	NE 4 mph7 km/h
DayMostly clear and warm, with a high of 71°F22°C and morning low of 54°F12°C. Light wind from the NE around 4 mph6 km/h. NightPartly cloudy, with a low around 55°F13°C. Light wind from the ENE around 5 mph8 km/h.
	TuesdaySep 29	70°F21°C	55°F13°C	0.06 in1.6 mm· 23%	71%	Light Rain	SSE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 55°F13°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 23% chance of showers in the evening.
	WednesdaySep 30	67°F19°C	59°F15°C	0.33 in8.3 mm· 43%	81%	Light Rain	SE 8 mph13 km/h
DayOvercast and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the SE at 9 mph14 km/h. 43% chance of light rain throughout the day. NightMostly cloudy, with a low around 60°F16°C. Breezy from the SSE at 8 to 9 mph13 to 14 km/h. 38% chance of light rain throughout the night.
	ThursdayOct 1	66°F19°C	57°F14°C	0.22 in5.7 mm· 33%	69%	Showers	NW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the NW at 10 mph15 km/h. 33% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the NW at 9 mph14 km/h. 29% chance of showers throughout the night.
	FridayOct 2	66°F19°C	56°F13°C	0.15 in3.9 mm· 26%	65%	Showers	S 9 mph14 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 56°F13°C. Breezy from the S at 9 to 10 mph14 to 15 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the S at 8 to 9 mph13 to 14 km/h. 26% chance of showers throughout the night.
	SaturdayOct 3	66°F19°C	56°F13°C	0.13 in3.3 mm· 24%	64%	Showers	SW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 56°F13°C. Breezy from the SW at 10 mph15 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 9 mph14 km/h. 19% chance of showers throughout the night.
	SundayOct 4	64°F18°C	54°F12°C	0.09 in2.4 mm· 20%	57%	Drizzle	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 54°F12°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 19% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 56°F13°C. Breezy from the W at 9 to 10 mph15 to 15 km/h. 20% chance of drizzle throughout the night.
	MondayOct 5	62°F17°C	51°F11°C	0.09 in2.4 mm· 18%	52%	Drizzle	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 51°F11°C. Breezy from the W at 10 to 11 mph16 to 18 km/h. 18% 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.
	TuesdayOct 6	62°F17°C	50°F10°C Feels 46°F8°C	0.08 in2 mm· 13%	47%	Drizzle	WNW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 50°F10°C. Breezy from the WNW at 10 mph15 km/h. 10% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 51°F11°C. Breezy from the WNW at 9 mph14 km/h. 13% chance of drizzle throughout the night.
	WednesdayOct 7	63°F17°C	49°F9°C Feels 45°F7°C	0.05 in1.3 mm· 12%	39%	Drizzle	WNW 9 mph14 km/h
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 49°F9°C. Breezy from the WNW at 9 to 10 mph15 to 16 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h.

Nearby Cities

Round Lake Beach1 mi2 km Grayslake3 mi4 km Mundelein8 mi12 km Libertyville9 mi14 km McHenry9 mi14 km Gurnee10 mi16 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: 42.3534°N, 88.0934°W·Elevation: 243m·Timezone: America/Chicago·Population: 18,461