Harman US

Adamstown, PA Weather & Growing Conditions

This Afternoon
70°F
Partly Sunny
Partly sunny, with a high near 70. South wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
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). Updated through the day.

Growing snapshot for Adamstown, PA

Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a

Explore more for Adamstown, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Blue Marsh Lake, Pa (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.