Current Conditions

Mundelein, Illinois

89°F32°C

Drizzle

Feels like97°F36°C

Wind

SW 8 mph13 km/h

Humidity

58%

Cloud Cover

49%

As of Wednesday, September 2, 2026 at 1:24 PM CDT

Today's Outlook

Day

Mostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C — feels like 99°F37°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon.

Night

Mostly clear, with a low around 82°F28°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 91°F33°CFeels 99°F37°C	Low 76°F25°C	Precip 0.02 in0.5 mm13%	Cloud 45%	Wind SW 7 mph11 km/h	Wednesday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C — feels like 99°F37°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 82°F28°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the night.
Drizzle	High 86°F30°CFeels 92°F33°C	Low 77°F25°C	Precip 0.04 in1.1 mm20%	Cloud 44%	Wind S 6 mph10 km/h	Thursday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 77°F25°C — feels like 91°F33°C. Light wind from the SSW around 6 mph10 km/h. 20% chance of drizzle around midday. Heavy, humid air. Thursday Night: Partly cloudy, with a low around 78°F25°C. Light wind from the SSE around 6 mph9 km/h.
Showers	High 85°F29°CFeels 91°F33°C	Low 75°F24°C	Precip 0.14 in3.6 mm33%	Cloud 64%	Wind E 7 mph11 km/h	Friday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the ESE at 7 mph11 km/h. 28% chance of light rain in the morning. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the E at 7 mph11 km/h. 33% chance of showers throughout the night.
Showers	High 81°F27°CFeels 85°F29°C	Low 74°F23°C	Precip 0.14 in3.6 mm29%	Cloud 56%	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 mph11 to 14 km/h. 26% chance of showers throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 74°F23°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 29% chance of showers overnight.
Drizzle	High 78°F26°C	Low 71°F22°C	Precip 0.06 in1.4 mm11%	Cloud 62%	Wind ESE 7 mph11 km/h	Sunday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 71°F22°C. Breezy from the ESE at 7 to 8 mph11 to 13 km/h. 11% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
Partly Cloudy	High 79°F26°C	Low 69°F21°C	Precip 0.02 in0.5 mm6%	Cloud 54%	Wind SE 7 mph12 km/h	Monday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Breezy from the SE at 7 to 9 mph12 to 14 km/h. Monday Night: Mostly cloudy, with a low around 71°F21°C. Breezy from the ESE at 7 to 8 mph12 to 13 km/h.
Partly Cloudy	High 87°F31°CFeels 90°F32°C	Low 69°F21°C	Precip 0 in0.1 mm3%	Cloud 57%	Wind S 10 mph16 km/h	Tuesday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Breezy from the S at 10 to 11 mph16 to 17 km/h. Humid. Tuesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the S at 10 to 11 mph16 to 18 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	91°F33°C Feels 99°F37°C	76°F25°C	0.02 in0.5 mm· 13%	45%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C — feels like 99°F37°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly clear, with a low around 82°F28°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the night.
	ThursdaySep 3	86°F30°C Feels 92°F33°C	77°F25°C	0.04 in1.1 mm· 20%	44%	Drizzle	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 77°F25°C — feels like 91°F33°C. Light wind from the SSW around 6 mph10 km/h. 20% chance of drizzle around midday. Heavy, humid air. NightPartly cloudy, with a low around 78°F25°C. Light wind from the SSE around 6 mph9 km/h.
	FridaySep 4	85°F29°C Feels 91°F33°C	75°F24°C	0.14 in3.6 mm· 33%	64%	Showers	E 7 mph11 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the ESE at 7 mph11 km/h. 28% chance of light rain in the morning. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Breezy from the E at 7 mph11 km/h. 33% chance of showers throughout the night.
	SaturdaySep 5	81°F27°C Feels 85°F29°C	74°F23°C	0.14 in3.6 mm· 29%	56%	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 mph11 to 14 km/h. 26% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 29% chance of showers overnight.
	SundaySep 6	78°F26°C	71°F22°C	0.06 in1.4 mm· 11%	62%	Drizzle	ESE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 71°F22°C. Breezy from the ESE at 7 to 8 mph11 to 13 km/h. 11% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
	MondaySep 7	79°F26°C	69°F21°C	0.02 in0.5 mm· 6%	54%	Partly Cloudy	SE 7 mph12 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Breezy from the SE at 7 to 9 mph12 to 14 km/h. NightMostly cloudy, with a low around 71°F21°C. Breezy from the ESE at 7 to 8 mph12 to 13 km/h.
	TuesdaySep 8	87°F31°C Feels 90°F32°C	69°F21°C	0 in0.1 mm· 3%	57%	Partly Cloudy	S 10 mph16 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Breezy from the S at 10 to 11 mph16 to 17 km/h. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the S at 10 to 11 mph16 to 18 km/h.
	WednesdaySep 9	89°F32°C Feels 94°F34°C	77°F25°C	0.04 in0.9 mm· 10%	38%	Drizzle	SW 10 mph17 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 77°F25°C. Breezy from the SW at 10 mph17 km/h. Humid. NightPartly cloudy, with a low around 78°F25°C. Breezy from the SW at 10 to 12 mph17 to 20 km/h. 10% chance of drizzle in the evening.
	ThursdaySep 10	83°F28°C	73°F23°C	0.17 in4.3 mm· 23%	52%	Showers	SW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 73°F23°C. Breezy from the WSW at 9 mph14 km/h. 23% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 20% chance of showers throughout the night.
	FridaySep 11	82°F28°C	71°F22°C	0.2 in5 mm· 22%	54%	Showers	SSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the SSW at 10 mph16 km/h. 22% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SSW at 9 mph14 km/h. 22% chance of showers throughout the night.
	SaturdaySep 12	80°F26°C	70°F21°C	0.19 in4.7 mm· 24%	61%	Showers	SW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 70°F21°C. Breezy from the SW at 9 to 10 mph15 to 15 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 23% chance of showers throughout the night.
	SundaySep 13	78°F26°C	68°F20°C	0.21 in5.3 mm· 23%	59%	Showers	SSW 10 mph15 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the SSW at 10 to 11 mph16 to 17 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F21°C. Breezy from the SSW at 9 to 10 mph15 to 15 km/h. 20% chance of showers throughout the night.
	MondaySep 14	77°F25°C	66°F19°C	0.18 in4.6 mm· 19%	55%	Showers	SW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the SW at 10 mph16 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 19% chance of showers throughout the night.
	TuesdaySep 15	77°F25°C	66°F19°C	0.19 in4.7 mm· 18%	50%	Showers	SW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 18% chance of showers throughout the day. NightPartly cloudy, with a low around 67°F19°C. Breezy from the SSW at 9 mph14 km/h. 17% chance of showers throughout the night.
	WednesdaySep 16	75°F24°C	65°F18°C	0.14 in3.5 mm· 20%	53%	Drizzle	SSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SSW at 9 mph15 km/h. 20% chance of drizzle throughout the night.

Nearby Cities

Libertyville3 mi5 km Vernon Hills3 mi5 km Grayslake6 mi10 km Lake Zurich6 mi10 km Round Lake8 mi12 km Buffalo Grove8 mi13 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: 42.2631°N, 88.0040°W·Elevation: 224m·Timezone: America/Chicago·Population: 31,582