Knox, Pennsylvania Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Knox weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Clear——78°45°—
- ThursdayJun 4Overcast——80°54°+2°
- FridayJun 5Overcast——80°56°0°
- SaturdayJun 6Light Showers78%—79°58°-1°
- SundayJun 7Drizzle69%—82°60°+3°
- MondayJun 8Clear——79°54°-3°
- TuesdayJun 9Overcast10%—80°58°+1°
Ozone at AQI 35. AQI flat over the last 6 hours (within ±3 points). Overcast through the UV peak window (cloud cover ~84%) — afternoon ozone should stay flat.
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 35. Overcast through the UV peak window (cloud cover ~84%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
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
- 3:50 AM
- Moonset
- 1:14 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Knox at a glance
- Today vs. normal: 7°F below 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.