Shirleysburg, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Shirleysburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain45%0.11″97°72°—
- SundayJul 5Light Drizzle43%0.02″91°71°-6°
- MondayJul 6Thunderstorm86%—83°70°-8°
- TuesdayJul 7Light Showers86%0.01″77°67°-6°
- WednesdayJul 8Heavy Drizzle19%0.07″68°65°-9°
- ThursdayJul 9Light Drizzle14%—91°65°+23°
- FridayJul 10Light Drizzle54%—88°67°-3°
AQI 88 (Moderate), driven by Ozone. AQI up 25 in the last 6 hours — air quality is degrading. Ozone at AQI 61. Overcast through the UV peak window (cloud cover ~70%) — 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 61. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.
- Present
- AQI 61
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
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
- 11:29 PM
- Moonset
- 11:21 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Shirleysburg at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 17260
16-Day Forecast — Shirleysburg
- Sat97°72°45%
- Sun91°73°43%
- Mon83°70°86%
- Tue77°67°86%
- Wed68°65°19%
- Thu91°65°14%
- Fri88°67°54%
- Sat86°64°34%
- Sun81°60°20%
- Mon86°54°21%
- Tue88°61°19%
- Wed83°62°36%
- Thu86°58°52%
- Fri89°59°42%
- Sat89°67°52%
- Sun81°69°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Shirleysburg
SPC has placed Shirleysburg 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 Shirleysburg
- 17260