New Wilmington, PA Weather & Growing Conditions
Today
76°F
Partly Sunny then Chance Light Rain
A chance of rain after 3pm. Partly sunny. High near 76, with temperatures falling to around 70 in the afternoon. South wind 3 to 12 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Partly Sunny then Chance Light Rain | 3 to 12 mph S | 50% |
| Tonight | 58°F | Light Rain | 7 to 13 mph S | 98% |
| Thursday | 68°F | Partly Sunny | 7 to 12 mph SW | 6% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 6 mph SW | 0% |
| Friday | 61°F | Chance Light Rain | 2 to 7 mph SW | 36% |
| Friday Night | 38°F | Chance Light Rain | 2 to 7 mph W | 51% |
| Saturday | 53°F | Chance Light Rain | 7 to 12 mph W | 48% |
| Saturday Night | 32°F | Chance Light Rain | 5 to 8 mph W | 37% |
| Sunday | 54°F | Partly Sunny | 6 to 12 mph W | 8% |
| Sunday Night | 30°F | Partly Cloudy | 7 mph W | 8% |
| Monday | 56°F | Slight Chance Light Rain | 5 to 12 mph W | 18% |
| Monday Night | 31°F | Slight Chance Light Rain then Partly Cloudy | 6 mph SW | 16% |
| Tuesday | 60°F | Mostly Sunny | 7 to 13 mph SW | 6% |
| Tuesday Night | 31°F | Partly Cloudy | 2 to 6 mph W | 6% |
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 Nov 4, 2026.