Current Conditions

Arlington Heights, Illinois

59°F15°C
Partly Cloudy

Wind

ENE 10 mph16 km/h

Humidity

74%

Cloud Cover

69%

As of Tuesday, September 22, 2026 at 9:53 PM CDT

Today's Outlook

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

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 63°F17°CLow 57°F14°CPrecip 0 in0 mmCloud 72%Wind ENE 10 mph16 km/hWednesday: Mostly cloudy and mild, with a high of 63°F17°C and morning low of 57°F14°C. Breezy from the NE at 11 to 12 mph17 to 19 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.
Partly CloudyHigh 65°F18°CLow 57°F14°CPrecip 0 in0 mmCloud 47%Wind ENE 7 mph11 km/hThursday: Partly cloudy and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the ENE at 8 mph12 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h.
Partly CloudyHigh 66°F19°CLow 57°F14°CPrecip 0 in0.1 mm4%Cloud 78%Wind E 5 mph9 km/hFriday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. Friday Night: Mostly cloudy, with a low around 58°F15°C. Light wind from the ENE around 5 mph8 km/h.
CloudyHigh 66°F19°CLow 56°F13°CPrecip 0 in0.1 mm4%Cloud 81%Wind E 5 mph9 km/hSaturday: Overcast and mild, with a high of 66°F19°C and morning low of 56°F13°C. Light wind from the ESE around 6 mph9 km/h. Saturday Night: Overcast, with a low around 57°F14°C. Light wind from the E around 5 mph8 km/h.
DrizzleHigh 69°F20°CLow 56°F14°CPrecip 0.03 in0.7 mm15%Cloud 68%Wind ENE 4 mph7 km/hSunday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 56°F14°C. Light wind from the ENE around 4 mph7 km/h. 12% chance of drizzle in the morning. Sunday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph7 km/h. 15% chance of drizzle before dawn.
ClearHigh 71°F22°CLow 56°F13°CPrecip 0 in0 mmCloud 31%Wind NE 4 mph7 km/hMonday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 56°F13°C. Light wind from the NE around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the NE around 4 mph7 km/h.
Light RainHigh 72°F22°CLow 55°F13°CPrecip 0.06 in1.6 mm27%Cloud 75%Wind SSE 6 mph10 km/hTuesday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 55°F13°C. Breezy from the SSE at 7 to 8 mph11 to 12 km/h. Tuesday Night: Mostly cloudy, with a low around 56°F13°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 27% chance of showers in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2363°F17°C57°F14°C0 in0 mm· —72%Partly CloudyENE 10 mph16 km/h
ThursdaySep 2465°F18°C57°F14°C0 in0 mm· —47%Partly CloudyENE 7 mph11 km/h
FridaySep 2566°F19°C57°F14°C0 in0.1 mm· 4%78%Partly CloudyE 5 mph9 km/h
SaturdaySep 2666°F19°C56°F13°C0 in0.1 mm· 4%81%CloudyE 5 mph9 km/h
SundaySep 2769°F20°C56°F14°C0.03 in0.7 mm· 15%68%DrizzleENE 4 mph7 km/h
MondaySep 2871°F22°C56°F13°C0 in0 mm· —31%ClearNE 4 mph7 km/h
TuesdaySep 2972°F22°C55°F13°C0.06 in1.6 mm· 27%75%Light RainSSE 6 mph10 km/h
WednesdaySep 3068°F20°C61°F16°C0.38 in9.6 mm· 35%82%Light RainS 9 mph14 km/h
ThursdayOct 168°F20°C58°F14°C0.2 in5 mm· 27%65%ShowersW 9 mph14 km/h
FridayOct 268°F20°C56°F14°C0.12 in3 mm· 20%59%ShowersWSW 8 mph13 km/h
SaturdayOct 368°F20°C56°F14°C0.11 in2.7 mm· 20%64%ShowersSW 8 mph14 km/h
SundayOct 466°F19°C56°F13°C0.15 in3.7 mm· 21%60%ShowersWSW 9 mph15 km/h
MondayOct 565°F18°C53°F12°C0.12 in3 mm· 20%54%ShowersW 9 mph15 km/h
TuesdayOct 666°F19°C52°F11°C0.06 in1.5 mm· 14%45%DrizzleW 9 mph14 km/h
WednesdayOct 765°F18°C51°F11°C0.1 in2.5 mm· 15%45%ShowersNW 9 mph14 km/h

Nearby Cities

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