Washington Boro, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington Boro, a community in Lancaster County, Pennsylvania.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. East wind around 6 mph.
7-day forecast for Washington Boro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 6 mph E | 3% |
| Tonight | 65°F | Mostly Cloudy then Rain Showers Likely | 6 to 14 mph SE | 62% |
| Sunday | 77°F | Showers And Thunderstorms | 8 to 15 mph S | 91% |
| Sunday Night | 61°F | Showers And Thunderstorms | 5 to 12 mph NW | 91% |
| Monday | 69°F | Slight Chance Rain Showers | 8 to 12 mph NE | 20% |
| Monday Night | 56°F | Chance Rain Showers | 7 to 14 mph NE | 41% |
| Tuesday | 62°F | Chance Rain Showers | 14 mph NE | 47% |
| Tuesday Night | 53°F | Chance Rain Showers | 13 to 16 mph NE | 46% |
| Wednesday | 62°F | Chance Rain Showers | 17 mph NE | 39% |
| Wednesday Night | 54°F | Chance Rain Showers | 13 to 16 mph NE | 36% |
| Thursday | 63°F | Chance Rain Showers | 15 mph NE | 36% |
| Thursday Night | 53°F | Chance Rain Showers | 7 to 14 mph NE | 32% |
| Friday | 67°F | Chance Rain Showers | 13 mph N | 27% |
| Friday Night | 54°F | Slight Chance Rain Showers | 7 to 13 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Washington Boro (40.007, -76.469). Updated through the day.
Growing snapshot for Washington Boro
Last spring frost
Apr 1
First fall frost
Nov 10
Growing season
221 days
Hardiness zone
7a
More local growing data for Washington Boro: nearby ZIP 17582 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Safe Harbor Dam, Pa (5.6 mi from Washington Boro). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.