Washington Boro, PA Weather & Growing Conditions
This Afternoon
78°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 78. East wind around 6 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Slight Chance Rain Showers | 6 mph E | 15% |
| Tonight | 64°F | Chance Rain Showers | 6 to 13 mph SE | 52% |
| Sunday | 82°F | Rain Showers | 9 to 15 mph S | 76% |
| Sunday Night | 59°F | Showers And Thunderstorms then Mostly Cloudy | 6 to 10 mph W | 90% |
| Monday | 72°F | Mostly Cloudy then Chance Rain Showers | 10 mph NE | 33% |
| Monday Night | 55°F | Chance Rain Showers | 7 to 10 mph NE | 50% |
| Tuesday | 66°F | Rain Showers Likely | 13 mph NE | 57% |
| Tuesday Night | 52°F | Chance Rain Showers | 10 to 14 mph NE | 52% |
| Wednesday | 64°F | Chance Rain Showers | 15 mph NE | 37% |
| Wednesday Night | 52°F | Chance Rain Showers | 12 to 15 mph NE | 27% |
| Thursday | 64°F | Slight Chance Rain Showers | 15 mph NE | 21% |
| Thursday Night | 51°F | Chance Rain Showers | 8 to 13 mph N | 30% |
| Friday | 68°F | Chance Rain Showers | 15 mph N | 30% |
| Friday Night | 51°F | Chance Rain Showers | 8 to 15 mph N | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Washington Boro, PA
Last spring frost
Apr 1
First fall frost
Nov 10
Growing season
221 days
Hardiness zone
7a
Explore more for Washington Boro, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Safe Harbor Dam, Pa (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.