South Wilmington, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
South Wilmington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain73%1.0″83°71°—
- SundayJul 5Foggy21%—80°68°-3°
- MondayJul 6Overcast——78°63°-2°
- TuesdayJul 7Overcast——80°58°+2°
- WednesdayJul 8Light Drizzle——82°62°+2°
- ThursdayJul 9T-storm w/ Hail47%—81°69°-1°
- FridayJul 10Drizzle41%0.01″80°68°-1°
AQI 30 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
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 50. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 6.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 22
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.6 µg/m³, PM10 to 8.6 µg/m³.
- PM2.5/PM10
- 0.88
- 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
- 10:49 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
South Wilmington at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 60474
16-Day Forecast — South Wilmington
- Sat83°71°73%
- Sun80°68°21%
- Mon78°63°4%
- Tue80°58°2%
- Wed82°62°5%
- Thu81°69°47%
- Fri80°68°41%
- Sat73°58°15%
- Sun74°56°7%
- Mon74°57°7%
- Tue76°55°10%
- Wed78°61°23%
- Thu81°62°16%
- Fri77°67°21%
- Sat80°66°26%
- Sun73°59°35%
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 Wilmington
SPC has placed South Wilmington in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Wilmington
- 60474