South Chicago Heights, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
South Chicago Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Showers75%0.78″83°69°—
- SundayJul 5Foggy12%—77°66°-6°
- MondayJul 6Overcast——79°67°+2°
- TuesdayJul 7Overcast——86°64°+7°
- WednesdayJul 8Overcast——86°66°0°
- ThursdayJul 9Thunderstorm51%0.17″78°68°-8°
- FridayJul 10Drizzle45%0.02″78°67°0°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 3 hours of recent rain — PM2.5 down to 10.0 µg/m³, PM10 to 10.9 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 48. Overcast through the UV peak window (cloud cover ~79%) — afternoon ozone should stay flat.
- Present
- AQI 48
- UV peak
- 2.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 10.0 µg/m³, PM10 to 10.9 µg/m³.
- PM2.5/PM10
- 0.92
- Wind
- light
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 10:47 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
South Chicago Heights at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — South Chicago Heights
- Sat83°69°75%
- Sun77°66°12%
- Mon79°67°4%
- Tue86°64°2%
- Wed86°66°4%
- Thu78°68°51%
- Fri78°67°45%
- Sat75°64°14%
- Sun81°61°9%
- Mon77°60°9%
- Tue80°60°8%
- Wed82°64°19%
- Thu85°65°23%
- Fri77°70°16%
- Sat83°69°14%
- Sun76°65°28%
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 — South Chicago Heights
SPC has placed South Chicago Heights in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 South Chicago Heights
- 60475
- 60411