Palmyra, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Palmyra, a borough in Lebanon County, Pennsylvania.

Tonight

52°F

Mostly Clear

Mostly clear, with a low around 52. North wind 5 to 8 mph.

7-day forecast for Palmyra

When	Temp	Forecast	Wind	Precip
Tonight	52°F	Mostly Clear	5 to 8 mph N	0%
Saturday	76°F	Mostly Sunny	7 mph E	3%
Saturday Night	61°F	Mostly Cloudy then Chance Rain Showers	6 to 10 mph SE	36%
Sunday	76°F	Rain Showers	8 to 12 mph S	95%
Sunday Night	60°F	Showers And Thunderstorms	7 to 10 mph NW	95%
Monday	71°F	Chance Rain Showers	10 mph NE	36%
Monday Night	55°F	Chance Rain Showers	9 to 13 mph NE	41%
Tuesday	63°F	Chance Rain Showers	14 mph NE	52%
Tuesday Night	50°F	Chance Rain Showers	15 mph NE	52%
Wednesday	61°F	Chance Rain Showers	15 mph NE	45%
Wednesday Night	50°F	Chance Showers And Thunderstorms	14 mph NE	46%
Thursday	63°F	Chance Showers And Thunderstorms	14 mph NE	42%
Thursday Night	51°F	Chance Showers And Thunderstorms	6 to 10 mph NE	38%
Friday	68°F	Chance Rain Showers then Partly Sunny	9 to 13 mph N	26%

Forecast source: National Weather Service (api.weather.gov) for Palmyra (40.310, -76.595). Updated through the day.

Growing snapshot for Palmyra

Last spring frost

Apr 20

First fall frost

Oct 25

Growing season

185 days

Hardiness zone

More local growing data for Palmyra: nearby ZIP 17078 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

Annville Avon Campbelltown Cleona Cornwall Fort Indiantown Gap Fredericksburg Hebron Jonestown Lebanon Lebanon South Mount Gretna Mount Gretna Heights Myerstown Pleasant Hill Quentin Sand Hill Schaefferstown Timber Hills West Myerstown

All Pennsylvania locations ›

Climate data from the nearest NOAA station, Lebanon 2 W, Pa (6.8 mi from Palmyra). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.