West Newton, Pennsylvania Weather
Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →
West Newton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Heavy Rain66%1.1″86°72°—
- MondayAug 3Overcast10%—80°70°-6°
- TuesdayAug 4Overcast——86°62°+6°
- WednesdayAug 5Light Showers40%—86°68°0°
- ThursdayAug 6Drizzle54%—86°68°0°
- FridayAug 7Thunderstorm62%—87°69°+1°
- SaturdayAug 8Light Showers48%—87°66°0°
AQI 40 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.0 µg/m³, PM10 to 7.4 µg/m³.
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 35. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 2.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.0 µg/m³, PM10 to 7.4 µg/m³.
- PM2.5/PM10
- 0.95
- Wind
- light
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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).
Red sky at night, sailor's delight.
- Moonrise
- 10:01 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Night falls a minute earlier
West Newton at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP code: 15089
16-Day Forecast — West Newton
- Sun86°72°66%
- Mon80°70°10%
- Tue86°62°3%
- Wed86°68°40%
- Thu86°68°54%
- Fri87°69°62%
- Sat87°66°48%
- Sun91°69°43%
- Mon93°69°40%
- Tue85°68°40%
- Wed88°63°28%
- Thu89°70°43%
- Fri93°72°43%
- Sat95°71°32%
- Sun85°71°30%
- Mon90°67°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of August 2, 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 Newton
SPC has placed West Newton in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.
Sun & seasons in West Newton
West Newton sits in Westmoreland County, where the year’s longest day runs 15h 2m of daylight and its shortest just 9h 18m — a swing of +5h 44m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Philadelphia, the state’s largest city, lies about 245 miles to the E. The nearest town West Newton tracks is Pittsburgh, roughly 19 miles to the NW.
Air quality in West Newton’s county has trended cleaner since 2020; its cleanest year on record was 2020 (median AQI 39). See the full air-quality history for West Newton.
ZIP codes in West Newton
- 15089