Adamstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Adamstown, a borough in Lancaster County, Pennsylvania.
Overnight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. Northeast wind around 6 mph.
7-day forecast for Adamstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Partly Cloudy | 6 mph NE | 0% |
| Saturday | 75°F | Mostly Sunny | 5 to 8 mph E | 2% |
| Saturday Night | 59°F | Mostly Cloudy then Rain Showers Likely | 6 to 10 mph SE | 67% |
| Sunday | 73°F | Rain Showers | 8 to 14 mph S | 92% |
| Sunday Night | 56°F | Showers And Thunderstorms | 6 to 12 mph W | 92% |
| Monday | 68°F | Slight Chance Rain Showers | 12 mph NE | 15% |
| Monday Night | 50°F | Chance Rain Showers | 7 to 14 mph NE | 38% |
| Tuesday | 61°F | Chance Rain Showers | 15 mph NE | 43% |
| Tuesday Night | 49°F | Chance Rain Showers | 14 to 17 mph NE | 39% |
| Wednesday | 61°F | Chance Rain Showers | 18 mph NE | 36% |
| Wednesday Night | 49°F | Chance Rain Showers | 17 mph NE | 33% |
| Thursday | 63°F | Chance Rain Showers | 17 mph NE | 34% |
| Thursday Night | 49°F | Chance Rain Showers | 9 to 15 mph NE | 29% |
| Friday | 67°F | Slight Chance Rain Showers | 13 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Adamstown (40.244, -76.065). Updated through the day.
Growing snapshot for Adamstown
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a
More local growing data for Adamstown: nearby ZIP 19501 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Blue Marsh Lake, Pa (9.6 mi from Adamstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.