New Wilmington, PA Weather & Growing Conditions
This Afternoon
86°F
Sunny
Sunny, with a high near 86. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Sunny | 3 mph SE | 0% |
| Tonight | 64°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph S | 34% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph S | 56% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 53% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 53% |
| Friday | 85°F | Showers And Thunderstorms | 2 to 7 mph SW | 82% |
| Friday Night | 65°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 82% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 35% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 mph SW | 35% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 9 mph SW | 22% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph SW | 27% |
| Monday | 87°F | Chance Rain Showers | 6 to 10 mph W | 42% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Wilmington, PA
Last spring frost
May 15
First fall frost
Oct 3
Growing season
140 days
Hardiness zone
6a
Explore more for New Wilmington, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Mercer, Pa (8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.