Current Conditions

Arlington Heights, Illinois

76°F25°C

Rain

Wind

SSW 8 mph14 km/h

Humidity

62%

Cloud Cover

68%

As of Tuesday, September 8, 2026 at 8:37 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 46% chance of light rain before dawn.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 79°F26°C	Low 71°F22°C	Precip 0.4 in10.1 mm100%	Cloud 85%	Wind WSW 8 mph12 km/h	Wednesday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 100% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 46% chance of light rain before dawn.
Partly Cloudy	High 75°F24°C	Low 65°F18°C	Precip 0 in0.1 mm4%	Cloud 67%	Wind NNE 6 mph10 km/h	Thursday: Overcast and warm, with a high of 75°F24°C and morning low of 67°F20°C. Light wind from the NNE around 6 mph10 km/h. Thursday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the NNW around 6 mph10 km/h.
Clear	High 79°F26°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 13%	Wind SE 6 mph9 km/h	Friday: Mostly clear and warm, with a high of 79°F26°C and morning low of 61°F16°C. Light wind from the SE around 6 mph9 km/h. Friday Night: Mostly clear, with a low around 62°F17°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h.
Drizzle	High 83°F29°CFeels 86°F30°C	Low 66°F19°C	Precip 0.04 in0.9 mm21%	Cloud 47%	Wind SW 7 mph11 km/h	Saturday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 66°F19°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 18% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. 21% chance of drizzle in the evening.
Drizzle	High 75°F24°C	Low 63°F17°C	Precip 0.05 in1.3 mm16%	Cloud 35%	Wind N 7 mph11 km/h	Sunday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the N at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle in the morning. Sunday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle throughout the night.
Showers	High 77°F25°C	Low 63°F17°C	Precip 0.15 in3.7 mm22%	Cloud 58%	Wind SE 10 mph15 km/h	Monday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SE at 10 to 12 mph16 to 19 km/h. 22% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the SSE at 10 to 13 mph15 to 21 km/h. 14% chance of drizzle throughout the night.
Showers	High 81°F27°C	Low 69°F21°C	Precip 0.13 in3.4 mm24%	Cloud 69%	Wind SW 10 mph17 km/h	Tuesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the WSW at 11 mph17 km/h. 22% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 69°F21°C. Breezy from the SW at 10 to 13 mph16 to 22 km/h. 24% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	79°F26°C	71°F22°C	0.4 in10.1 mm· 100%	85%	Rain	WSW 8 mph12 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 100% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 46% chance of light rain before dawn.
	ThursdaySep 10	75°F24°C	65°F18°C	0 in0.1 mm· 4%	67%	Partly Cloudy	NNE 6 mph10 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 67°F20°C. Light wind from the NNE around 6 mph10 km/h. NightMostly cloudy, with a low around 65°F18°C. Light wind from the NNW around 6 mph10 km/h.
	FridaySep 11	79°F26°C	61°F16°C	0 in0 mm· —	13%	Clear	SE 6 mph9 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 61°F16°C. Light wind from the SE around 6 mph9 km/h. NightMostly clear, with a low around 62°F17°C. Breezy from the SE at 6 to 7 mph9 to 12 km/h.
	SaturdaySep 12	83°F29°C Feels 86°F30°C	66°F19°C	0.04 in0.9 mm· 21%	47%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 66°F19°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 18% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. 21% chance of drizzle in the evening.
	SundaySep 13	75°F24°C	63°F17°C	0.05 in1.3 mm· 16%	35%	Drizzle	N 7 mph11 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the N at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle in the morning. NightPartly cloudy, with a low around 65°F18°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle throughout the night.
	MondaySep 14	77°F25°C	63°F17°C	0.15 in3.7 mm· 22%	58%	Showers	SE 10 mph15 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SE at 10 to 12 mph16 to 19 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 63°F17°C. Breezy from the SSE at 10 to 13 mph15 to 21 km/h. 14% chance of drizzle throughout the night.
	TuesdaySep 15	81°F27°C	69°F21°C	0.13 in3.4 mm· 24%	69%	Showers	SW 10 mph17 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the WSW at 11 mph17 km/h. 22% chance of drizzle throughout the day. NightMostly cloudy, with a low around 69°F21°C. Breezy from the SW at 10 to 13 mph16 to 22 km/h. 24% chance of showers throughout the night.
	WednesdaySep 16	73°F23°C	64°F18°C	0.21 in5.4 mm· 26%	61%	Showers	ENE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 64°F18°C. Breezy from the ENE at 7 mph11 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the NE at 7 mph11 km/h. 26% chance of showers throughout the night.
	ThursdaySep 17	79°F26°C	67°F19°C	0.19 in4.9 mm· 25%	58%	Showers	SSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 24% chance of showers throughout the night.
	FridaySep 18	73°F23°C	64°F18°C	0.17 in4.3 mm· 19%	52%	Showers	WNW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 64°F18°C. Breezy from the WNW at 9 to 10 mph15 to 16 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the W at 9 to 10 mph14 to 15 km/h. 19% chance of showers throughout the night.
	SaturdaySep 19	71°F21°C	59°F15°C	0.12 in3.1 mm· 18%	51%	Drizzle	NW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 71°F21°C and morning low of 59°F15°C. Breezy from the WNW at 8 to 9 mph14 to 14 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F16°C. Breezy from the NW at 8 mph13 km/h. 16% chance of drizzle throughout the night.
	SundaySep 20	68°F20°C	57°F14°C	0.11 in2.7 mm· 15%	53%	Showers	N 8 mph14 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the N at 9 mph14 km/h. 13% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the N at 8 mph13 km/h. 15% chance of showers throughout the night.
	MondaySep 21	68°F20°C	56°F13°C	0.12 in3 mm· 17%	54%	Showers	ENE 8 mph13 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 56°F13°C. Breezy from the NE at 9 mph14 km/h. 14% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 57°F14°C. Breezy from the ENE at 8 mph13 km/h. 17% chance of showers throughout the night.
	TuesdaySep 22	67°F20°C	55°F13°C	0.13 in3.4 mm· 18%	64%	Showers	ESE 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 55°F13°C. Breezy from the ESE at 9 mph14 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the E at 8 mph13 km/h. 18% chance of showers throughout the night.
	WednesdaySep 23	69°F20°C	56°F13°C	0.07 in1.9 mm· 17%	61%	Drizzle	SE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 56°F13°C. Breezy from the SE at 9 mph14 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SE at 8 mph12 km/h. 14% chance of drizzle 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

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