Compton, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Compton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain80%0.54″82°67°—
- SundayJul 5Foggy20%—79°66°-3°
- MondayJul 6Clear——79°62°0°
- TuesdayJul 7Overcast——79°57°0°
- WednesdayJul 8Overcast23%—80°62°+1°
- ThursdayJul 9Showers33%0.22″76°64°-4°
- FridayJul 10Overcast33%—79°62°+3°
AQI 22 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 4.7 µg/m³, PM10 at 5.1 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 during the projected peak around 7 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 4.7 µg/m³, PM10 at 5.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 10:53 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Compton at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61318
16-Day Forecast — Compton
- Sat82°67°80%
- Sun79°66°20%
- Mon79°62°3%
- Tue79°57°3%
- Wed80°62°23%
- Thu76°64°33%
- Fri79°62°33%
- Sat80°62°13%
- Sun67°57°8%
- Mon72°55°12%
- Tue76°58°12%
- Wed77°61°32%
- Thu81°65°25%
- Fri79°68°32%
- Sat83°69°24%
- Sun82°71°29%
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 — Compton
SPC includes Compton in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Compton
- 61318