Fullerton, Pennsylvania Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Fullerton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——88°54°—
- FridayJun 5Overcast——93°63°+5°
- SaturdayJun 6Light Drizzle32%0.01″86°64°-7°
- SundayJun 7Light Drizzle32%—86°65°0°
- MondayJun 8Overcast11%—77°61°-9°
- TuesdayJun 9Overcast——86°58°+9°
- WednesdayJun 10Partly Cloudy10%—90°62°+4°
AQI 23 (Good), driven by PM2.5. AQI down 14 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 during the projected peak around 7 AM.
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
- 3:32 AM
- Moonset
- 1:00 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Fullerton at a glance
- Today vs. normal: 16°F below the seasonal normal for this latitude
- Last frost: April 20 (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.