Littlestown, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Littlestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast27%—99°77°—
- SundayJul 5Heavy Drizzle92%0.04″95°73°-4°
- MondayJul 6Light Showers92%0.16″75°64°-20°
- TuesdayJul 7Light Drizzle69%0.01″71°60°-4°
- WednesdayJul 8Overcast17%—83°56°+12°
- ThursdayJul 9Overcast29%—90°63°+7°
- FridayJul 10Drizzle39%0.01″88°69°-2°
AQI 53 (Moderate), driven by PM2.5. AQI projected to climb to 73 over the next 6 hours. PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.92 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 48 now. With UV 4.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 26 around 1 PM.
- Present
- AQI 48
- UV peak
- 4.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 26
PM × Wind × Precip
PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.92 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 11:01 PM
- Moonset
- 10:12 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Littlestown at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 17340
16-Day Forecast — Littlestown
- Sat99°76°27%
- Sun95°73°92%
- Mon75°64°92%
- Tue71°60°69%
- Wed83°56°17%
- Thu90°63°29%
- Fri88°69°39%
- Sat85°70°40%
- Sun74°66°27%
- Mon74°64°18%
- Tue77°65°13%
- Wed86°68°19%
- Thu92°69°23%
- Fri93°71°32%
- Sat79°70°35%
- Sun86°69°50%
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 — Littlestown
SPC has placed Littlestown 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 Littlestown
- 17340