Elgin, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Elgin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain82%0.21″80°69°—
- SundayJul 5Overcast16%—77°65°-3°
- MondayJul 6Overcast——79°61°+2°
- TuesdayJul 7Overcast——81°58°+2°
- WednesdayJul 8Overcast25%—81°62°0°
- ThursdayJul 9Drizzle35%0.06″77°64°-4°
- FridayJul 10Overcast35%—80°62°+3°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.91 fine-to-coarse ratio and 4 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 4.8 µg/m³ (AQI 27) with a 0.91 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- Wind
- calm
- 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
- 10:51 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Elgin at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 28 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 60120, 60123, 60124
16-Day Forecast — Elgin
- Sat81°69°82%
- Sun77°65°16%
- Mon79°61°1%
- Tue81°58°2%
- Wed81°62°25%
- Thu77°64°35%
- Fri80°62°35%
- Sat81°61°13%
- Sun67°59°10%
- Mon73°55°12%
- Tue78°59°8%
- Wed79°62°26%
- Thu83°65°19%
- Fri83°68°26%
- Sat87°69°21%
- Sun84°70°32%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Elgin
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 — Elgin
SPC has placed Elgin in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Elgin
- 60120
- 60123
- 60124
- 60121
- 60122