Current Conditions

Round Lake, Illinois

81°F27°C

Drizzle

Feels like86°F30°C

Wind

SW 6 mph9 km/h

Humidity

79%

Cloud Cover

13%

As of Wednesday, September 2, 2026 at 9:11 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 77°F25°C. Light wind from the S around 6 mph10 km/h. 10% chance of drizzle before dawn.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 87°F30°CFeels 93°F34°C	Low 76°F25°C	Precip 0.04 in0.9 mm24%	Cloud 48%	Wind SSW 6 mph9 km/h	Thursday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 76°F25°C — feels like 93°F34°C. Light wind from the SW around 6 mph9 km/h. 24% chance of drizzle around midday. Heavy, humid air. Thursday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the S around 6 mph10 km/h. 10% chance of drizzle before dawn.
Showers	High 87°F31°CFeels 95°F35°C	Low 75°F24°C	Precip 0.11 in2.8 mm28%	Cloud 63%	Wind ESE 7 mph11 km/h	Friday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 75°F24°C — feels like 95°F35°C. Breezy from the SE at 7 mph11 km/h. 23% chance of drizzle in the morning. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. 28% chance of showers throughout the night.
Showers	High 81°F27°CFeels 85°F29°C	Low 73°F23°C	Precip 0.13 in3.4 mm30%	Cloud 54%	Wind ENE 7 mph11 km/h	Saturday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the ENE at 7 to 9 mph12 to 14 km/h. 24% chance of showers throughout the day. Heavy, humid air. Saturday Night: Partly cloudy, with a low around 73°F23°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 30% chance of showers overnight.
Partly Cloudy	High 79°F26°C	Low 71°F21°C	Precip 0.02 in0.4 mm7%	Cloud 66%	Wind E 6 mph10 km/h	Sunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 71°F21°C. Breezy from the ESE at 6 to 8 mph10 to 12 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
Partly Cloudy	High 80°F27°C	Low 70°F21°C	Precip 0.02 in0.5 mm7%	Cloud 63%	Wind SE 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. Monday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SE at 7 to 8 mph10 to 12 km/h.
Drizzle	High 85°F30°CFeels 88°F31°C	Low 70°F21°C	Precip 0.04 in0.9 mm10%	Cloud 62%	Wind SSE 9 mph15 km/h	Tuesday: Mostly cloudy and warm, with a high of 85°F30°C and morning low of 70°F21°C. Breezy from the SSE at 9 to 11 mph15 to 17 km/h. 10% chance of drizzle throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the S at 9 to 11 mph15 to 18 km/h.
Drizzle	High 89°F32°CFeels 94°F35°C	Low 76°F24°C	Precip 0.06 in1.5 mm15%	Cloud 47%	Wind SW 10 mph16 km/h	Wednesday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 76°F24°C — feels like 95°F35°C. Breezy from the SW at 10 mph16 km/h. 15% chance of drizzle in the morning. Humid. Wednesday Night: Partly cloudy, with a low around 76°F25°C. Breezy from the SW at 10 to 11 mph16 to 19 km/h. 15% chance of drizzle throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	87°F30°C Feels 93°F34°C	76°F25°C	0.04 in0.9 mm· 24%	48%	Drizzle	SSW 6 mph9 km/h
DayMostly cloudy and hot, with a high of 87°F30°C and morning low of 76°F25°C — feels like 93°F34°C. Light wind from the SW around 6 mph9 km/h. 24% chance of drizzle around midday. Heavy, humid air. NightPartly cloudy, with a low around 77°F25°C. Light wind from the S around 6 mph10 km/h. 10% chance of drizzle before dawn.
	FridaySep 4	87°F31°C Feels 95°F35°C	75°F24°C	0.11 in2.8 mm· 28%	63%	Showers	ESE 7 mph11 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 75°F24°C — feels like 95°F35°C. Breezy from the SE at 7 mph11 km/h. 23% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. 28% chance of showers throughout the night.
	SaturdaySep 5	81°F27°C Feels 85°F29°C	73°F23°C	0.13 in3.4 mm· 30%	54%	Showers	ENE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the ENE at 7 to 9 mph12 to 14 km/h. 24% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 73°F23°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 30% chance of showers overnight.
	SundaySep 6	79°F26°C	71°F21°C	0.02 in0.4 mm· 7%	66%	Partly Cloudy	E 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 71°F21°C. Breezy from the ESE at 6 to 8 mph10 to 12 km/h. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
	MondaySep 7	80°F27°C	70°F21°C	0.02 in0.5 mm· 7%	63%	Partly Cloudy	SE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SE at 7 to 8 mph10 to 12 km/h.
	TuesdaySep 8	85°F30°C Feels 88°F31°C	70°F21°C	0.04 in0.9 mm· 10%	62%	Drizzle	SSE 9 mph15 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 70°F21°C. Breezy from the SSE at 9 to 11 mph15 to 17 km/h. 10% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the S at 9 to 11 mph15 to 18 km/h.
	WednesdaySep 9	89°F32°C Feels 94°F35°C	76°F24°C	0.06 in1.5 mm· 15%	47%	Drizzle	SW 10 mph16 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 76°F24°C — feels like 95°F35°C. Breezy from the SW at 10 mph16 km/h. 15% chance of drizzle in the morning. Humid. NightPartly cloudy, with a low around 76°F25°C. Breezy from the SW at 10 to 11 mph16 to 19 km/h. 15% chance of drizzle throughout the night.
	ThursdaySep 10	82°F28°C	73°F23°C	0.24 in6 mm· 38%	54%	Showers	WSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 73°F23°C. Breezy from the WSW at 10 mph16 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 73°F23°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. 38% chance of showers throughout the night.
	FridaySep 11	79°F26°C	68°F20°C	0.19 in4.8 mm· 25%	53%	Showers	WSW 8 mph14 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 68°F20°C. Breezy from the WSW at 9 mph14 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F21°C. Breezy from the WSW at 8 mph13 km/h. 25% chance of showers throughout the night.
	SaturdaySep 12	79°F26°C	66°F19°C	0.14 in3.6 mm· 21%	52%	Showers	SSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the SSW at 9 to 10 mph14 to 16 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SSW at 9 mph14 km/h. 21% chance of showers throughout the night.
	SundaySep 13	78°F26°C	67°F19°C	0.18 in4.5 mm· 21%	57%	Showers	SSW 10 mph15 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 67°F19°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SSW at 9 to 10 mph15 to 15 km/h. 21% chance of showers throughout the night.
	MondaySep 14	77°F25°C	66°F19°C	0.11 in2.7 mm· 16%	50%	Showers	WSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the WSW at 9 mph15 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F19°C. Breezy from the SW at 9 mph14 km/h. 16% chance of showers throughout the night.
	TuesdaySep 15	75°F24°C	63°F17°C	0.1 in2.6 mm· 16%	46%	Drizzle	E 9 mph14 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NNE at 9 to 10 mph15 to 16 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 64°F18°C. Breezy from the E at 8 mph14 km/h. 16% chance of drizzle throughout the night.
	WednesdaySep 16	75°F24°C	63°F17°C	0.15 in3.8 mm· 19%	46%	Showers	SSE 9 mph14 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the S at 9 to 10 mph15 to 15 km/h. 14% chance of showers throughout the day. NightPartly cloudy, with a low around 64°F18°C. Breezy from the SSE at 9 mph14 km/h. 19% chance of showers throughout the night.
	ThursdaySep 17	75°F24°C	61°F16°C	0.09 in2.2 mm· 12%	48%	Showers	SW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the SW at 9 mph14 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Breezy from the SSW at 8 to 9 mph14 to 14 km/h. 11% chance of showers throughout the night.

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

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Coordinates: 42.3534°N, 88.0934°W·Elevation: 243m·Timezone: America/Chicago·Population: 18,461