West Decatur, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
West Decatur weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast36%—87°66°—
- SundayJul 5Overcast78%—84°66°-3°
- MondayJul 6Thunderstorm80%0.01″78°65°-6°
- TuesdayJul 7Showers63%0.02″69°59°-9°
- WednesdayJul 8Overcast14%—84°55°+15°
- ThursdayJul 9Overcast41%—84°60°0°
- FridayJul 10Light Drizzle48%—76°60°-8°
AQI 58 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.95 fine-to-coarse ratio and 4 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.
What's driving it
PM × Wind × Precip
PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.95 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- calm
- 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
- 11:08 PM
- Moonset
- 10:15 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
West Decatur at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 16878
15-Day Forecast — West Decatur
- Sat87°66°36%
- Sun84°66°78%
- Mon78°65°80%
- Tue69°59°63%
- Wed84°55°14%
- Thu84°60°41%
- Fri76°60°48%
- Sat80°61°38%
- Sun81°61°30%
- Mon78°57°19%
- Tue78°61°16%
- Wed72°57°29%
- Thu82°52°39%
- Fri81°59°46%
- Sat75°62°40%
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 — West Decatur
SPC has placed West Decatur 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 West Decatur
- 16878