Dallastown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dallastown, a borough in York County, Pennsylvania.
This Afternoon
80°F
Mostly Sunny
Mostly sunny, with a high near 80. North wind around 9 mph.
7-day forecast for Dallastown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Mostly Sunny | 9 mph N | 0% |
| Tonight | 54°F | Partly Cloudy | 5 to 9 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 6 mph E | 2% |
| Saturday Night | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 12 mph SE | 17% |
| Sunday | 77°F | Showers And Thunderstorms | 9 to 14 mph S | 82% |
| Sunday Night | 61°F | Showers And Thunderstorms | 6 to 10 mph NW | 82% |
| Monday | 69°F | Chance Rain Showers | 12 mph NE | 40% |
| Monday Night | 56°F | Chance Rain Showers | 8 to 13 mph NE | 45% |
| Tuesday | 61°F | Rain Showers Likely | 14 mph NE | 58% |
| Tuesday Night | 51°F | Rain Showers Likely | 13 to 16 mph NE | 58% |
| Wednesday | 59°F | Chance Rain Showers | 15 mph NE | 48% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 48% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 46% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 39% |
Forecast source: National Weather Service (api.weather.gov) for Dallastown (39.900, -76.641). Updated through the day.
Growing snapshot for Dallastown
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
7a
More local growing data for Dallastown: nearby ZIP 17313 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, York 3 Ssw Pump Stn, Pa (5.4 mi from Dallastown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.