Arlington Heights, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Arlington Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers80%1.1″82°67°—
- SundayJul 5Overcast15%—76°64°-6°
- MondayJul 6Overcast——80°65°+4°
- TuesdayJul 7Overcast——84°63°+4°
- WednesdayJul 8Overcast13%—85°65°+1°
- ThursdayJul 9Light Drizzle50%0.02″78°66°-7°
- FridayJul 10Overcast44%—82°64°+4°
AQI 47 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.1 µg/m³, PM10 at 7.5 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.1 µg/m³, PM10 at 7.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:50 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Arlington Heights at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 60004, 60005
16-Day Forecast — Arlington Heights
- Sat82°67°80%
- Sun76°64°15%
- Mon80°65°1%
- Tue84°63°1%
- Wed85°65°13%
- Thu78°66°50%
- Fri82°64°44%
- Sat84°65°11%
- Sun69°61°8%
- Mon77°60°8%
- Tue80°62°7%
- Wed84°66°23%
- Thu87°69°16%
- Fri88°71°19%
- Sat90°71°19%
- Sun89°72°28%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Arlington Heights
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Arlington Heights
SPC has placed Arlington Heights in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Arlington Heights
- 60005
- 60004