Atglen, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Atglen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle33%0.01″100°76°—
- SundayJul 5Heavy Rain89%0.62″95°72°-5°
- MondayJul 6Thunderstorm89%0.64″78°64°-17°
- TuesdayJul 7Light Drizzle73%0.01″68°57°-10°
- WednesdayJul 8Clear14%—81°55°+13°
- ThursdayJul 9Partly Cloudy25%—87°61°+6°
- FridayJul 10Light Drizzle34%0.01″87°69°0°
AQI 58 (Moderate), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 12.6 µg/m³, PM10 at 13.6 µg/m³ — typical background levels with no transport signature.
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 43 now. With UV 4.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 43
- UV peak
- 4.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 12.6 µg/m³, PM10 at 13.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:57 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Atglen at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 19310
16-Day Forecast — Atglen
- Sat100°76°33%
- Sun95°72°89%
- Mon78°64°89%
- Tue68°57°73%
- Wed81°55°14%
- Thu87°61°25%
- Fri87°69°34%
- Sat82°70°31%
- Sun74°65°31%
- Mon70°63°13%
- Tue79°62°15%
- Wed86°67°22%
- Thu90°71°24%
- Fri91°73°39%
- Sat75°69°36%
- Sun83°66°43%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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.
SPC Convective Outlook
Storm Prediction Center — Atglen
SPC has placed Atglen in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Atglen
- 19310