Mount Joy, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Joy, a borough in Lancaster County, Pennsylvania.
Overnight
49°F
Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 49. Southeast wind around 2 mph.
7-day forecast for Mount Joy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Patchy Fog | 2 mph SE | 0% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 1 to 13 mph S | 1% |
| Wednesday Night | 59°F | Mostly Cloudy then Chance Light Rain | 8 to 12 mph S | 29% |
| Thursday | 74°F | Light Rain | 8 to 13 mph S | 80% |
| Thursday Night | 57°F | Light Rain Likely | 2 to 7 mph SW | 58% |
| Friday | 70°F | Light Rain Likely | 3 mph NW | 56% |
| Friday Night | 46°F | Chance Light Rain then Partly Cloudy | 2 to 6 mph NW | 27% |
| Saturday | 63°F | Mostly Sunny | 6 to 15 mph NW | 10% |
| Saturday Night | 39°F | Partly Cloudy | 10 to 14 mph W | 10% |
| Sunday | 60°F | Mostly Sunny | 10 to 14 mph NW | 4% |
| Sunday Night | 37°F | Mostly Clear | 10 mph W | 4% |
| Monday | 59°F | Sunny | 10 to 17 mph W | 4% |
| Monday Night | 36°F | Mostly Clear | 5 to 13 mph W | 4% |
| Tuesday | 64°F | Sunny | 6 to 14 mph W | 2% |
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
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East Petersburg
Elizabethtown
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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 Nov 4, 2026.