Willowbrook, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Willowbrook weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain79%0.73″84°70°—
- SundayJul 5Foggy24%—79°68°-5°
- MondayJul 6Clear21%—81°65°+2°
- TuesdayJul 7Partly Cloudy——84°63°+3°
- WednesdayJul 8Thunderstorm12%0.01″84°65°0°
- ThursdayJul 9Light Showers31%0.17″77°64°-7°
- FridayJul 10Overcast27%—84°63°+7°
AQI 34 (Good), driven by PM2.5. AQI down 16 over the last 6 hours — air quality is improving sharply. PM2.5 at 6.1 µg/m³ (AQI 34) with a 0.97 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
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 6.1 µg/m³ (AQI 34) with a 0.97 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 10:49 PM
- Moonset
- 9:56 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Willowbrook at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 60527
15-Day Forecast — Willowbrook
- Sat84°70°79%
- Sun79°68°24%
- Mon81°65°21%
- Tue84°63°9%
- Wed84°65°12%
- Thu77°64°31%
- Fri84°63°27%
- Sat83°69°14%
- Sun81°66°10%
- Mon91°68°10%
- Tue71°65°14%
- Wed83°62°17%
- Thu80°65°23%
- Fri85°70°26%
- Sat78°64°13%
Forecast data from Open-Meteo (CC BY 4.0).
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 — Willowbrook
SPC includes Willowbrook in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Willowbrook
- 60527