West Newton, Pennsylvania Weather
Apples hang heavy on the branch. Day 93 of summer. Read this microseason across nine climate regions →
West Newton weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 5:03 AM EDT · Open-Meteo
- TodaySep 21Rain later47%0.32″68°59°—
- TuesdaySep 22Light Drizzle67%0.06″63°58°-5°
- WednesdaySep 23Drizzle57%0.03″58°53°-5°
- ThursdaySep 24Overcast18%—65°47°+7°
- FridaySep 25Clear——68°41°+3°
- SaturdaySep 26Clear——70°43°+2°
- SundaySep 27Overcast——72°45°+2°
Air quality now AQI 25 · Good
AQI 25 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.0 µg/m³, PM10 to 6.1 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 2 PM.
What's driving it
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.0 µg/m³, PM10 to 6.1 µg/m³.
- PM2.5/PM10
- 0.98
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:51 PM
- Moonset
- 1:37 AM
- In sign
- ♑︎ Capricorn
Apples hang heavy on the branch
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
West Newton at a glance
- Today vs. normal: Today averages 64°F (high 68°F, low 59°F), about the 63°F normal for Sep 21
- Last frost: April 27 (1991–2020 median, NOAA station 10 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — West Newton
- Mon68°59°47%
- Tue63°58°67%
- Wed58°53°57%
- Thu65°47°18%
- Fri68°41°4%
- Sat70°43°2%
- Sun72°45°2%
- Mon69°53°6%
- Tue74°55°12%
- Wed65°56°23%
- Thu68°51°23%
- Fri67°47°15%
- Sat74°49°7%
- Sun78°51°10%
- Mon80°58°16%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 22) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
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
Air quality in West Newton’s county has trended cleaner since 2020; its cleanest year on record was 2020 (median AQI 39).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | radishes |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash | lettuce, peas, spinach, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash, garlic |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
West Newton's warmest month is July (~73°F mean) and its coldest is January (~30°F). Rainfall peaks in June (4.4 inches) and bottoms out in February (2.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 2.9″ | 15 |
| February | 32° | 2.4″ | 12 |
| March | 40° | 3.1″ | 13 |
| April | 51° | 3.4″ | 14 |
| May | 61° | 4.3″ | 14 |
| June | 69° | 4.4″ | 13 |
| July | 73° | 4.3″ | 11 |
| August | 72° | 3.6″ | 10 |
| September | 66° | 3.5″ | 10 |
| October | 54° | 3.0″ | 12 |
| November | 43° | 2.8″ | 12 |
| December | 34° | 2.9″ | 13 |
Regional context
Similar climates Collinsburg, PA, Sutersville, PA, Fellsburg, PA
West Newton swings from 30°F in January to 73°F in July (44°F) per NOAA NCEI 1991-2020 normals; precipitation in West Newton runs about 40.9 inches on roughly 147 measurable days.
Summer convection drives West Newton's precipitation: June logs 4.4 inches on 12.5 rainy days, against February's 2.4 inches on 11.9 — warm-season storms carry West Newton's moisture. West Newton shares that warm-season-wet pattern with places like Collinsburg, PA, Sutersville, PA and Fellsburg, PA.
Around April 27, West Newton sheds its freezing nights — kale, peas, spinach, and parsnips go into West Newton's beds. Tomatoes and peppers do best set out two weeks later in West Newton, once nights clear the mid-40s°F. By October 22, frost is back in West Newton — protect or harvest anything tender. Open lawns in West Newton whiten first when frost returns.
Similar climates: Collinsburg, PA, Sutersville, PA, Fellsburg, PA, Wyano, PA, Smithton, PA.
Frequently asked
- When does it freeze in West Newton?
- In West Newton, expect the last spring frost near April 27; West Newton's first autumn frost comes around October 22.
- What is the rainy season in West Newton?
- West Newton sees its heaviest rain in June (around 4.4 inches), part of roughly 41 inches a year.
- What is the warmest month in West Newton?
- On average July tops the year in West Newton at about 73°F.
- What is the coldest month in West Newton?
- The coldest stretch in West Newton falls in January, around 30°F on average.
- When can I start a vegetable garden in West Newton?
- Hardy spring crops go in near April 27 in West Newton; tender peppers and squash wait 10–14 days.
- How many rainy days does West Newton get?
- West Newton averages about 147 days with measurable rain or snow each year.
- What hardiness zone is West Newton?
- With January around 30°F, West Newton's zone reflects that minimum — the USDA ZIP map confirms West Newton's band.
- What is the 10-day forecast for West Newton?
- West Newton's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in West Newton?
- See this week's day-by-day rain chances for West Newton in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in West Newton?
- Current conditions for West Newton and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the West Newton forecast updated?
- The West Newton forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in West Newton?
- Today's sunrise and sunset times for West Newton are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for West Newton?
- The next few days in West Newton's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
West Newton sits at 40.2°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in West Newton
- 15089