Chicago Heights, Illinois Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Chicago Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——76°53°—
- TuesdayJun 16Light Drizzle30%0.01″75°60°-1°
- WednesdayJun 17T-storm w/ Hvy Hail94%1.2″75°55°0°
- ThursdayJun 18Light Drizzle85%—69°58°-6°
- FridayJun 19Partly Cloudy——74°57°+5°
- SaturdayJun 20Overcast10%—72°57°-2°
- SundayJun 21Light Drizzle42%0.04″64°61°-8°
AQI 44 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 46 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 46 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 0.6 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 46
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:16 AM
- Moonset
- 8:43 PM
- In sign
- ♋︎ Cancer
Solstice approaches — longest light
Chicago Heights at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Chicago Heights
- Mon76°53°1%
- Tue75°60°30%
- Wed75°55°94%
- Thu69°58°85%
- Fri74°57°6%
- Sat72°57°10%
- Sun64°61°42%
- Mon67°61°43%
- Tue68°62°13%
- Wed81°60°11%
- Thu81°65°17%
- Fri81°64°10%
- Sat75°62°30%
- Sun80°63°29%
- Mon78°62°29%
- Tue68°60°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Chicago Heights
SPC has placed Chicago Heights in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Chicago Heights
- 60411
- 60412