Orrstown, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Orrstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast46%—97°74°—
- SundayJul 5Light Drizzle40%0.02″92°69°-5°
- MondayJul 6Showers85%—86°68°-6°
- TuesdayJul 7Light Showers85%0.01″72°66°-14°
- WednesdayJul 8Light Drizzle17%0.03″68°64°-4°
- ThursdayJul 9Light Drizzle11%—88°65°+20°
- FridayJul 10Light Drizzle50%—83°68°-5°
AQI 75 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 46 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 8 around 1 PM.
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 46 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 46
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:28 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Orrstown at a glance
- Today vs. normal: 4°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: 17244
16-Day Forecast — Orrstown
- Sat97°74°46%
- Sun92°69°40%
- Mon86°68°85%
- Tue72°66°85%
- Wed68°64°17%
- Thu88°65°11%
- Fri83°68°50%
- Sat82°65°31%
- Sun78°61°21%
- Mon80°56°19%
- Tue85°60°19%
- Wed83°63°25%
- Thu83°59°28%
- Fri84°62°30%
- Sat88°68°39%
- Sun82°67°47%
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 — Orrstown
SPC has placed Orrstown in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal 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 Orrstown
- 17244