Dallastown, PA Weather & Growing Conditions
This Afternoon
76°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 76. East wind around 7 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance Rain Showers | 7 mph E | 15% |
| Tonight | 63°F | Chance Rain Showers | 7 to 12 mph SE | 48% |
| Sunday | 80°F | Rain Showers Likely | 9 to 15 mph S | 71% |
| Sunday Night | 57°F | Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph NW | 87% |
| Monday | 70°F | Mostly Cloudy then Chance Rain Showers | 10 mph NE | 33% |
| Monday Night | 53°F | Chance Rain Showers | 6 to 10 mph NE | 52% |
| Tuesday | 63°F | Rain Showers Likely | 12 mph NE | 60% |
| Tuesday Night | 50°F | Rain Showers Likely | 10 to 14 mph NE | 58% |
| Wednesday | 62°F | Chance Rain Showers | 15 mph NE | 42% |
| Wednesday Night | 50°F | Chance Rain Showers | 14 mph NE | 28% |
| Thursday | 62°F | Slight Chance Rain Showers | 14 mph NE | 19% |
| Thursday Night | 49°F | Chance Rain Showers | 7 to 12 mph N | 31% |
| Friday | 66°F | Chance Rain Showers | 14 mph N | 31% |
| Friday Night | 49°F | Chance Rain Showers | 7 to 14 mph N | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dallastown, PA
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
7a
Explore more for Dallastown, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, York 3 Ssw Pump Stn, Pa (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.