Allendale, Illinois Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Allendale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——83°55°—
- ThursdayJun 4Overcast——83°60°0°
- FridayJun 5Light Drizzle——80°62°-3°
- SaturdayJun 6Light Showers15%0.05″84°65°+4°
- SundayJun 7Drizzle31%—87°69°+3°
- MondayJun 8Drizzle36%0.02″75°69°-12°
- TuesdayJun 9Light Drizzle21%—75°69°0°
Ozone at AQI 86 now. AQI up 9 over the last 6 hours (gradual rise). With UV 8.9 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 72 by mid-afternoon.
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 86 now. With UV 8.9 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 72 by mid-afternoon.
- Present
- AQI 86
- UV peak
- 8.9 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 72
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 6.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:37 AM
- Moonset
- 12:55 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Allendale at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 7 (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.