Crest Hill, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Crest Hill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers81%1.2″82°69°—
- SundayJul 5Overcast15%—79°66°-3°
- MondayJul 6Overcast——81°66°+2°
- TuesdayJul 7Overcast——84°62°+3°
- WednesdayJul 8Overcast——81°62°-3°
- ThursdayJul 9Thunderstorm49%0.14″79°67°-2°
- FridayJul 10Overcast46%—82°64°+3°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.4 µg/m³, PM10 to 9.0 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 2.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.4 µg/m³, PM10 to 9.0 µg/m³.
- PM2.5/PM10
- 0.93
- Wind
- calm
- Recent rain
- 2h 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
- 9:57 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Crest Hill at a glance
- Today vs. normal: 9°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.
ZIP code: 60403
16-Day Forecast — Crest Hill
- Sat82°69°81%
- Sun79°66°15%
- Mon81°66°2%
- Tue84°62°2%
- Wed81°62°8%
- Thu79°67°49%
- Fri82°64°46%
- Sat82°64°15%
- Sun69°60°8%
- Mon76°56°8%
- Tue77°61°6%
- Wed81°63°29%
- Thu84°66°25%
- Fri83°70°19%
- Sat87°70°24%
- Sun84°71°33%
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 — Crest Hill
SPC has placed Crest Hill 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 Crest Hill
- 60403
- 60441