Current Conditions
Arlington Heights, Illinois
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
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Partly Cloudy | High 63°F17°C | Low 57°F14°C | Precip 0 in0 mm— | Cloud 72% | Wind ENE 10 mph16 km/h | Wednesday: 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 Cloudy | High 65°F18°C | Low 57°F14°C | Precip 0 in0 mm— | Cloud 47% | Wind ENE 7 mph11 km/h | Thursday: 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 Cloudy | High 66°F19°C | Low 57°F14°C | Precip 0 in0.1 mm4% | Cloud 78% | Wind E 5 mph9 km/h | Friday: 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. | |
| Cloudy | High 66°F19°C | Low 56°F13°C | Precip 0 in0.1 mm4% | Cloud 81% | Wind E 5 mph9 km/h | Saturday: 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. | |
| Drizzle | High 69°F20°C | Low 56°F14°C | Precip 0.03 in0.7 mm15% | Cloud 68% | Wind ENE 4 mph7 km/h | Sunday: 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. | |
| Clear | High 71°F22°C | Low 56°F13°C | Precip 0 in0 mm— | Cloud 31% | Wind NE 4 mph7 km/h | Monday: 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 Rain | High 72°F22°C | Low 55°F13°C | Precip 0.06 in1.6 mm27% | Cloud 75% | Wind SSE 6 mph10 km/h | Tuesday: 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 23 | 63°F17°C | 57°F14°C | 0 in0 mm· — | 72% | Partly Cloudy | ENE 10 mph16 km/h | |
DayMostly 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. NightMostly cloudy, with a low around 57°F14°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. | |||||||
| ThursdaySep 24 | 65°F18°C | 57°F14°C | 0 in0 mm· — | 47% | Partly Cloudy | ENE 7 mph11 km/h | |
DayPartly 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. NightMostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h. | |||||||
| FridaySep 25 | 66°F19°C | 57°F14°C | 0 in0.1 mm· 4% | 78% | Partly Cloudy | E 5 mph9 km/h | |
DayMostly 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. NightMostly cloudy, with a low around 58°F15°C. Light wind from the ENE around 5 mph8 km/h. | |||||||
| SaturdaySep 26 | 66°F19°C | 56°F13°C | 0 in0.1 mm· 4% | 81% | Cloudy | E 5 mph9 km/h | |
DayOvercast 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. NightOvercast, with a low around 57°F14°C. Light wind from the E around 5 mph8 km/h. | |||||||
| SundaySep 27 | 69°F20°C | 56°F14°C | 0.03 in0.7 mm· 15% | 68% | Drizzle | ENE 4 mph7 km/h | |
DayMostly 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. NightMostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph7 km/h. 15% chance of drizzle before dawn. | |||||||
| MondaySep 28 | 71°F22°C | 56°F13°C | 0 in0 mm· — | 31% | Clear | NE 4 mph7 km/h | |
DayPartly 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. NightPartly cloudy, with a low around 57°F14°C. Light wind from the NE around 4 mph7 km/h. | |||||||
| TuesdaySep 29 | 72°F22°C | 55°F13°C | 0.06 in1.6 mm· 27% | 75% | Light Rain | SSE 6 mph10 km/h | |
DayMostly 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. NightMostly 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. | |||||||
| WednesdaySep 30 | 68°F20°C | 61°F16°C | 0.38 in9.6 mm· 35% | 82% | Light Rain | S 9 mph14 km/h | |
DayOvercast and mild, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the S at 9 to 10 mph15 to 15 km/h. 35% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Breezy from the S at 8 to 9 mph13 to 14 km/h. 34% chance of light rain throughout the night. | |||||||
| ThursdayOct 1 | 68°F20°C | 58°F14°C | 0.2 in5 mm· 27% | 65% | Showers | W 9 mph14 km/h | |
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 58°F14°C. Breezy from the W at 9 to 10 mph14 to 15 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the W at 8 mph13 km/h. 27% chance of showers throughout the night. | |||||||
| FridayOct 2 | 68°F20°C | 56°F14°C | 0.12 in3 mm· 20% | 59% | Showers | WSW 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 56°F14°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the WSW at 8 mph12 km/h. 20% chance of showers throughout the night. | |||||||
| SaturdayOct 3 | 68°F20°C | 56°F14°C | 0.11 in2.7 mm· 20% | 64% | Showers | SW 8 mph14 km/h | |
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 56°F14°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 20% chance of showers throughout the night. | |||||||
| SundayOct 4 | 66°F19°C | 56°F13°C | 0.15 in3.7 mm· 21% | 60% | Showers | WSW 9 mph15 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 56°F13°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 9 mph14 km/h. 19% chance of showers throughout the night. | |||||||
| MondayOct 5 | 65°F18°C | 53°F12°C | 0.12 in3 mm· 20% | 54% | Showers | W 9 mph15 km/h | |
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 53°F12°C. Breezy from the W at 10 mph15 km/h. 16% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the WSW at 9 mph14 km/h. 20% chance of showers throughout the night. | |||||||
| TuesdayOct 6 | 66°F19°C | 52°F11°C | 0.06 in1.5 mm· 14% | 45% | Drizzle | W 9 mph14 km/h | |
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 52°F11°C. Breezy from the W at 9 to 10 mph15 to 16 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 14% chance of drizzle throughout the night. | |||||||
| WednesdayOct 7 | 65°F18°C | 51°F11°C | 0.1 in2.5 mm· 15% | 45% | Showers | NW 9 mph14 km/h | |
DayPartly cloudy and mild, with a high of 65°F18°C and morning low of 51°F11°C. Breezy from the NW at 9 to 10 mph15 to 16 km/h. 15% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 53°F11°C. Breezy from the WNW at 8 to 9 mph14 to 14 km/h. 13% chance of showers throughout the night. | |||||||
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.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 42.0884°N, 87.9806°W·Elevation: 214m·Timezone: America/Chicago·Population: 75,926