Palmyra, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Palmyra, a borough in Lebanon County, Pennsylvania.
This Afternoon
71°F
Mostly Sunny
Mostly sunny, with a high near 71. South wind around 5 mph.
7-day forecast for Palmyra
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 49°F | Patchy Fog | 1 to 5 mph SE | 2% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 1 to 12 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Rain Showers Likely | 6 to 9 mph S | 63% |
| Thursday | 73°F | Rain Showers | 6 to 10 mph S | 88% |
| Thursday Night | 58°F | Rain Showers Likely | 1 to 6 mph SW | 63% |
| Friday | 70°F | Rain Showers Likely | 3 mph NW | 59% |
| Friday Night | 47°F | Chance Rain Showers | 5 mph NW | 51% |
| Saturday | 64°F | Slight Chance Rain Showers | 5 to 12 mph NW | 16% |
| Saturday Night | 39°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph NW | 15% |
| Sunday | 60°F | Mostly Sunny | 5 to 10 mph W | 9% |
| Sunday Night | 37°F | Slight Chance Rain Showers | 8 mph W | 21% |
| Monday | 60°F | Slight Chance Rain Showers | 8 to 16 mph NW | 22% |
| Monday Night | 36°F | Slight Chance Rain Showers | 6 to 12 mph W | 20% |
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
7a
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
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 Nov 3, 2026.