Current Conditions

Arlington Heights, Illinois

77°F25°C

Hot

Wind

SW 8 mph12 km/h

Humidity

79%

Cloud Cover

71%

As of Wednesday, September 2, 2026 at 7:19 AM CDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 78°F25°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 94°F34°CFeels 101°F38°C	Low 77°F25°C	Precip 0 in0.1 mm5%	Cloud 34%	Wind SW 7 mph12 km/h	Wednesday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F25°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.
Drizzle	High 87°F31°CFeels 94°F34°C	Low 76°F25°C	Precip 0.02 in0.5 mm14%	Cloud 35%	Wind S 6 mph10 km/h	Thursday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 76°F25°C — feels like 93°F34°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle in the afternoon. Heavy, humid air. Thursday Night: Mostly clear, with a low around 78°F25°C. Light wind from the S around 6 mph9 km/h.
Showers	High 88°F31°CFeels 96°F36°C	Low 75°F24°C	Precip 0.1 in2.6 mm26%	Cloud 53%	Wind ESE 6 mph10 km/h	Friday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 75°F24°C — feels like 97°F36°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 26% chance of showers throughout the day. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 18% chance of drizzle throughout the night.
Showers	High 82°F28°CFeels 87°F31°C	Low 74°F23°C	Precip 0.17 in4.3 mm35%	Cloud 57%	Wind ENE 6 mph10 km/h	Saturday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 74°F23°C — feels like 88°F31°C. Breezy from the ENE at 6 to 8 mph10 to 13 km/h. 33% 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 6 to 8 mph10 to 12 km/h. 35% chance of showers throughout the night.
Drizzle	High 79°F26°C	Low 70°F21°C	Precip 0.05 in1.3 mm14%	Cloud 55%	Wind E 6 mph10 km/h	Sunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Light wind from the E around 6 mph10 km/h.
Partly Cloudy	High 80°F26°C	Low 68°F20°C	Precip 0.02 in0.5 mm5%	Cloud 56%	Wind ESE 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 68°F20°C. Breezy from the ESE at 6 to 8 mph10 to 12 km/h. Monday Night: Mostly cloudy, with a low around 69°F21°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h.
Drizzle	High 86°F30°C	Low 68°F20°C	Precip 0.03 in0.7 mm10%	Cloud 58%	Wind SSE 8 mph14 km/h	Tuesday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 10 mph14 to 15 km/h. 10% chance of drizzle around midday. Tuesday Night: Partly cloudy, with a low around 69°F21°C. Breezy from the SSE at 8 to 10 mph14 to 16 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	94°F34°C Feels 101°F38°C	77°F25°C	0 in0.1 mm· 5%	34%	Hot	SW 7 mph12 km/h
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F25°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.
	ThursdaySep 3	87°F31°C Feels 94°F34°C	76°F25°C	0.02 in0.5 mm· 14%	35%	Drizzle	S 6 mph10 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 76°F25°C — feels like 93°F34°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle in the afternoon. Heavy, humid air. NightMostly clear, with a low around 78°F25°C. Light wind from the S around 6 mph9 km/h.
	FridaySep 4	88°F31°C Feels 96°F36°C	75°F24°C	0.1 in2.6 mm· 26%	53%	Showers	ESE 6 mph10 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 75°F24°C — feels like 97°F36°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 26% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 18% chance of drizzle throughout the night.
	SaturdaySep 5	82°F28°C Feels 87°F31°C	74°F23°C	0.17 in4.3 mm· 35%	57%	Showers	ENE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 74°F23°C — feels like 88°F31°C. Breezy from the ENE at 6 to 8 mph10 to 13 km/h. 33% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Breezy from the ENE at 6 to 8 mph10 to 12 km/h. 35% chance of showers throughout the night.
	SundaySep 6	79°F26°C	70°F21°C	0.05 in1.3 mm· 14%	55%	Drizzle	E 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the E around 6 mph10 km/h.
	MondaySep 7	80°F26°C	68°F20°C	0.02 in0.5 mm· 5%	56%	Partly Cloudy	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 68°F20°C. Breezy from the ESE at 6 to 8 mph10 to 12 km/h. NightMostly cloudy, with a low around 69°F21°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h.
	TuesdaySep 8	86°F30°C	68°F20°C	0.03 in0.7 mm· 10%	58%	Drizzle	SSE 8 mph14 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 10 mph14 to 15 km/h. 10% chance of drizzle around midday. NightPartly cloudy, with a low around 69°F21°C. Breezy from the SSE at 8 to 10 mph14 to 16 km/h.
	WednesdaySep 9	92°F33°C Feels 98°F37°C	75°F24°C	0.03 in0.8 mm· 7%	30%	Hot	SW 10 mph16 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 75°F24°C — feels like 99°F37°C. Breezy from the SW at 10 mph16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Breezy from the SSW at 10 to 11 mph15 to 17 km/h.
	ThursdaySep 10	87°F30°C Feels 90°F32°C	75°F24°C	0.09 in2.3 mm· 15%	42%	Drizzle	SW 9 mph15 km/h
DayPartly cloudy and hot, with a high of 87°F30°C and morning low of 75°F24°C. Breezy from the SW at 9 to 10 mph15 to 15 km/h. 15% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 76°F25°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 15% chance of drizzle throughout the night.
	FridaySep 11	83°F28°C	71°F22°C	0.17 in4.3 mm· 25%	53%	Showers	SW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 71°F22°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 25% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 73°F23°C. Breezy from the SSW at 8 to 9 mph14 to 14 km/h. 19% chance of showers throughout the night.
	SaturdaySep 12	80°F27°C	70°F21°C	0.22 in5.7 mm· 26%	63%	Showers	SSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the SSW at 10 mph16 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 9 mph14 km/h. 26% chance of showers throughout the night.
	SundaySep 13	78°F25°C	67°F19°C	0.12 in3.1 mm· 21%	62%	Showers	WSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 67°F19°C. Breezy from the WSW at 9 to 10 mph15 to 15 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F20°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 21% chance of showers throughout the night.
	MondaySep 14	76°F25°C	65°F18°C	0.12 in3.1 mm· 20%	57%	Showers	SW 8 mph14 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 65°F18°C. Breezy from the SW at 9 mph14 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 8 mph13 km/h. 15% chance of showers throughout the night.
	TuesdaySep 15	76°F25°C	64°F18°C	0.13 in3.2 mm· 17%	53%	Drizzle	SSW 8 mph14 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Breezy from the SSW at 9 mph14 km/h. 15% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the SSW at 8 mph13 km/h. 17% chance of drizzle throughout the night.
	WednesdaySep 16	77°F25°C	64°F18°C	0.11 in2.9 mm· 19%	48%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the SW at 9 mph14 km/h. 19% chance of showers throughout the day. NightPartly cloudy, with a low around 65°F18°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 16% chance of showers throughout the night.

Nearby Cities

Rolling Meadows2 mi3 km Prospect Heights2 mi4 km Mount Prospect3 mi4 km Palatine3 mi5 km Wheeling4 mi7 km Buffalo Grove4 mi7 km

About This Forecast

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Coordinates: 42.0884°N, 87.9806°W·Elevation: 214m·Timezone: America/Chicago·Population: 75,926