Windsor, Illinois Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Windsor weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 2Partly Cloudy——79°57°—
- WednesdayJun 3Overcast——80°55°+1°
- ThursdayJun 4Overcast——81°58°+1°
- FridayJun 5Overcast14%—80°61°-1°
- SaturdayJun 6Light Showers27%0.04″82°66°+2°
- SundayJun 7Overcast25%—87°69°+5°
- MondayJun 8Overcast21%—82°68°-5°
Ozone at AQI 63 — peak already passed at 1 PM under clear skies. AQI flat over the last 6 hours (within ±3 points). Levels should ease through evening.
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 63 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 63
- UV peak
- 3.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 63
PM × Wind × Precip
PM2.5 at 5.0 µg/m³, PM10 at 5.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- 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 bees stay at home, rain will soon come; if they fly away, fine will be the day.
- Moonrise
- 2:59 AM
- Moonset
- 11:56 AM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Windsor at a glance
- Today vs. normal: 78°F — typical for the season
- 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 3, 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.