Llewellyn, Pennsylvania Weather
Honeysuckle sweetens the night. Day 89 of spring. Read this microseason across nine climate regions →
Llewellyn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Overcast——73°50°—
- WednesdayJun 17Light Drizzle17%—80°57°+7°
- ThursdayJun 18Heavy Drizzle63%0.10″87°65°+7°
- FridayJun 19Overcast——80°56°-7°
- SaturdayJun 20Overcast——75°52°-5°
- SundayJun 21Light Drizzle18%0.01″75°52°0°
- MondayJun 22Heavy Drizzle50%0.27″71°54°-4°
AQI 47 (Good), driven by Ozone. AQI up 16 in the last 6 hours — air quality is degrading. Ozone at AQI 47 — peak already passed at 1 PM under clear skies. 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 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 0.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 47
PM × Wind × Precip
PM2.5 at 5.3 µg/m³ (AQI 29) with a 0.88 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.88
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:44 AM
- Moonset
- 9:54 PM
- In sign
- ♋︎ Cancer
Honeysuckle sweetens the night
Llewellyn at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Llewellyn
- Tue73°50°0%
- Wed80°57°17%
- Thu87°65°63%
- Fri80°56°8%
- Sat75°52°4%
- Sun75°52°18%
- Mon71°54°50%
- Tue77°51°35%
- Wed78°55°6%
- Thu82°59°23%
- Fri86°61°27%
- Sat89°64°36%
- Sun92°65°26%
- Mon92°69°55%
- Tue92°66°43%
- Wed91°69°35%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Llewellyn
SPC has placed Llewellyn in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3SLGTSlight Risk
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 Llewellyn
- 17944
- 17901