Downers Grove, Illinois Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Downers Grove weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——74°52°—
- TuesdayJun 16Heavy Drizzle64%0.07″71°58°-3°
- WednesdayJun 17T-storm w/ Hvy Hail89%0.41″74°55°+3°
- ThursdayJun 18Light Drizzle78%—67°57°-7°
- FridayJun 19Clear——69°54°+2°
- SaturdayJun 20Drizzle18%0.03″67°55°-2°
- SundayJun 21Heavy Drizzle33%0.24″65°60°-2°
AQI 41 (Good), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 10.4 µg/m³, PM10 at 10.6 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.
What's driving it
PM × Wind × Precip
PM2.5 at 10.4 µg/m³, PM10 at 10.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:17 AM
- Moonset
- 8:46 PM
- In sign
- ♋︎ Cancer
Solstice approaches — longest light
Downers Grove at a glance
- Today vs. normal: 16°F below the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Downers Grove
- Mon75°52°2%
- Tue71°58°64%
- Wed74°55°89%
- Thu67°57°78%
- Fri69°54°5%
- Sat67°55°18%
- Sun65°60°33%
- Mon70°58°33%
- Tue78°57°16%
- Wed77°61°12%
- Thu81°62°16%
- Fri88°68°20%
- Sat90°74°27%
- Sun90°76°35%
- Mon82°69°32%
- Tue84°67°32%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Downers Grove
Right now in the garden
Peak growing season
As of June 15, 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 — Downers Grove
SPC has placed Downers Grove in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3SLGTSlight Risk
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 Downers Grove
- 60515
- 60516