Adamstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Adamstown, a borough in Lancaster County, Pennsylvania.
This Afternoon
70°F
Partly Sunny
Partly sunny, with a high near 70. South wind around 6 mph.
7-day forecast for Adamstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Partly Sunny | 6 mph S | 1% |
| Tonight | 51°F | Partly Cloudy | 5 mph S | 2% |
| Wednesday | 73°F | Sunny | 2 to 12 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Chance Rain Showers | 6 to 10 mph S | 33% |
| Thursday | 72°F | Rain Showers | 8 to 12 mph S | 83% |
| Thursday Night | 60°F | Rain Showers | 2 to 8 mph SW | 83% |
| Friday | 69°F | Rain Showers Likely | 3 mph NW | 73% |
| Friday Night | 49°F | Rain Showers Likely | 5 mph NW | 57% |
| Saturday | 64°F | Slight Chance Rain Showers | 6 to 12 mph NW | 17% |
| Saturday Night | 41°F | Partly Cloudy | 9 mph NW | 14% |
| Sunday | 60°F | Mostly Sunny | 6 to 10 mph W | 9% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 9 mph W | 21% |
| Monday | 59°F | Slight Chance Rain Showers | 9 to 17 mph W | 23% |
| Monday Night | 38°F | Slight Chance Rain Showers | 7 to 12 mph W | 19% |
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 Nov 3, 2026.