Oak Forest, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Oak Forest weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Showers81%2.5″83°69°—
- SundayJul 5Foggy13%—77°66°-6°
- MondayJul 6Overcast——81°67°+4°
- TuesdayJul 7Overcast——84°65°+3°
- WednesdayJul 8Overcast——83°65°-1°
- ThursdayJul 9Thunderstorm50%0.28″80°67°-3°
- FridayJul 10Overcast46%—82°66°+2°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.3 µg/m³, PM10 at 9.8 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 39. Overcast through the UV peak window (cloud cover ~81%) — afternoon ozone should stay flat.
- Present
- AQI 39
- UV peak
- 2.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 9.3 µg/m³, PM10 at 9.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- calm
- Recent rain
- 1h 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
- 10:48 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Oak Forest at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- 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: 60452
16-Day Forecast — Oak Forest
- Sat83°69°81%
- Sun77°66°13%
- Mon81°67°4%
- Tue84°65°1%
- Wed83°65°5%
- Thu80°67°50%
- Fri82°66°46%
- Sat83°65°15%
- Sun73°63°10%
- Mon78°62°10%
- Tue79°64°7%
- Wed84°65°29%
- Thu87°68°25%
- Fri86°72°19%
- Sat89°71°24%
- Sun89°73°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 — Oak Forest
SPC has placed Oak Forest 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 Oak Forest
- 60452