Mount Joy, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Joy, a borough in Lancaster County, Pennsylvania.
Tonight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. North wind around 7 mph.
7-day forecast for Mount Joy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 77°F | Mostly Sunny | 7 mph NE | 2% |
| Saturday Night | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 12 mph SE | 24% |
| Sunday | 78°F | Showers And Thunderstorms | 9 to 14 mph S | 89% |
| Sunday Night | 61°F | Showers And Thunderstorms | 6 to 10 mph NW | 89% |
| Monday | 72°F | Chance Rain Showers | 12 mph NE | 38% |
| Monday Night | 55°F | Chance Rain Showers | 8 to 14 mph NE | 39% |
| Tuesday | 64°F | Chance Rain Showers | 15 mph E | 52% |
| Tuesday Night | 51°F | Chance Rain Showers | 16 mph NE | 52% |
| Wednesday | 62°F | Chance Rain Showers | 16 mph NE | 45% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 46% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 15 mph NE | 46% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 6 to 12 mph N | 38% |
| Friday | 69°F | Chance Rain Showers | 12 mph N | 27% |
Forecast source: National Weather Service (api.weather.gov) for Mount Joy (40.111, -76.506). Updated through the day.
Growing snapshot for Mount Joy
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
7a
More local growing data for Mount Joy: nearby ZIP 17552 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Denver
East Earl
East Petersburg
Elizabethtown
Ephrata
Falmouth
Farmersville
Fivepointville
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Goodville
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Hinkletown
Hopeland
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Lampeter
Climate data from the nearest NOAA station, Landisville 2 Nw, Pa (4.5 mi from Mount Joy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.