Julian, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Julian weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain41%0.07″93°69°—
- SundayJul 5Light Showers55%0.11″88°70°-5°
- MondayJul 6Light Showers79%0.03″77°69°-11°
- TuesdayJul 7Showers79%0.01″80°68°+3°
- WednesdayJul 8Heavy Drizzle19%0.01″76°66°-4°
- ThursdayJul 9Light Drizzle17%—87°62°+11°
- FridayJul 10Light Drizzle61%0.04″82°66°-5°
AQI 69 (Moderate), driven by Ozone. AQI up 17 in the last 6 hours — air quality is degrading. Ozone at AQI 76 — 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 76 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 76
- UV peak
- 1.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 76
PM × Wind × Precip
PM2.5 at 6.6 µg/m³, PM10 at 7.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 1h 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
- 11:06 PM
- Moonset
- 10:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Julian at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 16844
16-Day Forecast — Julian
- Sat93°69°41%
- Sun88°70°55%
- Mon77°69°79%
- Tue80°68°79%
- Wed76°66°19%
- Thu87°62°17%
- Fri82°66°61%
- Sat80°64°31%
- Sun78°60°19%
- Mon72°58°26%
- Tue79°56°21%
- Wed83°56°35%
- Thu84°57°39%
- Fri81°61°35%
- Sat88°66°51%
- Sun82°70°39%
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 — Julian
SPC has placed Julian in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal 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 Julian
- 16844