Altona, Illinois Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Altona weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 2Clear——83°51°—
- WednesdayJun 3Overcast——84°54°+1°
- ThursdayJun 4Overcast——82°57°-2°
- FridayJun 5Heavy Drizzle57%0.07″81°66°-1°
- SaturdayJun 6Light Showers52%0.05″81°66°0°
- SundayJun 7Overcast30%—83°63°+2°
- MondayJun 8Overcast31%—79°64°-4°
Ozone at AQI 71 — peak already passed at 1 PM under clear skies. AQI up 5 over the last 6 hours (gradual rise). 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 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 71
- UV peak
- 5.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 71
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
- 3:13 AM
- Moonset
- 11:56 AM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Altona at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 23 (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.