Chesterfield, Indiana Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Chesterfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Clear——80°49°—
- ThursdayJun 4Overcast——85°56°+5°
- FridayJun 5Overcast14%—85°62°0°
- SaturdayJun 6Light Showers70%—81°63°-4°
- SundayJun 7Showers70%—82°67°+1°
- MondayJun 8Showers17%—80°68°-2°
- TuesdayJun 9Light Drizzle18%0.01″73°69°-7°
PM2.5 at 7.7 µg/m³ (AQI 43) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust. AQI up 5 over the last 6 hours (gradual rise).
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 31. Overcast through the UV peak window (cloud cover ~63%) — afternoon ozone should stay flat.
- Present
- AQI 31
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 7.7 µg/m³ (AQI 43) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:11 AM
- Moonset
- 1:43 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Chesterfield at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Chesterfield
SPC has placed Chesterfield in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.