Westfield, Illinois Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Westfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——82°56°—
- FridayJun 5Overcast10%—84°64°+2°
- SaturdayJun 6Light Showers34%—83°64°-1°
- SundayJun 7Light Showers46%—85°68°+2°
- MondayJun 8Light Drizzle49%0.02″76°68°-9°
- TuesdayJun 9Light Drizzle31%—80°67°+4°
- WednesdayJun 10Showers24%0.06″83°71°+3°
PM2.5 at 6.4 µg/m³ (AQI 36) with a 0.90 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 13 over the last 6 hours (steady decline since this morning).
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 6.4 µg/m³ (AQI 36) with a 0.90 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- calm
- 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
- 4:19 AM
- Moonset
- 1:56 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Westfield at a glance
- Today vs. normal: 20°F below the seasonal normal for this latitude
- Last frost: April 13 (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 — Westfield
SPC has placed Westfield in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.