Chesterfield, Indiana Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chesterfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Showers40%0.38″91°71°—
- SundayJul 5Light Drizzle28%0.01″83°70°-8°
- MondayJul 6Light Drizzle28%—79°68°-4°
- TuesdayJul 7Overcast——81°62°+2°
- WednesdayJul 8Overcast14%—83°64°+2°
- ThursdayJul 9T-storm w/ Hail40%—84°66°+1°
- FridayJul 10Light Drizzle49%—76°69°-8°
AQI 39 (Good), driven by PM2.5. AQI projected to climb to 73 over the next 6 hours. PM2.5 at 12.2 µg/m³, PM10 at 14.2 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 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 51 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 32 around 1 PM.
- Present
- AQI 51
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 32
PM × Wind × Precip
PM2.5 at 12.2 µg/m³, PM10 at 14.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:37 PM
- Moonset
- 10:48 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Chesterfield at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Chesterfield
- Sat91°71°40%
- Sun83°70°28%
- Mon79°68°28%
- Tue81°62°8%
- Wed83°64°14%
- Thu84°66°40%
- Fri76°69°49%
- Sat83°66°25%
- Sun72°59°17%
- Mon70°59°11%
- Tue74°59°11%
- Wed81°62°23%
- Thu83°67°17%
- Fri84°68°19%
- Sat85°67°26%
- Sun85°70°42%
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 — Chesterfield
SPC has placed Chesterfield in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Chesterfield
- 46017