Harman US

New Wilmington, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for New Wilmington, a borough in Lawrence County, Pennsylvania.

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 for New Wilmington

WhenTempForecastWindPrecip
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) for New Wilmington (41.118, -80.332). Updated through the day.

Growing snapshot for New Wilmington

Last spring frost
Apr 30
First fall frost
Oct 23
Growing season
175 days

More local growing data for New Wilmington: nearby ZIP 16172 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

All Pennsylvania locations ›

Climate data from the nearest NOAA station, New Castle 1 N, Pa (7.1 mi from New Wilmington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.