Washington Boro, PA Weather & Growing Conditions
Today
75°F
Mostly Sunny
Mostly sunny. High near 75, with temperatures falling to around 69 in the afternoon. South wind 2 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 2 to 12 mph S | 1% |
| Tonight | 61°F | Mostly Cloudy then Slight Chance Light Rain | 9 to 14 mph SE | 18% |
| Thursday | 74°F | Light Rain Likely | 8 to 14 mph S | 73% |
| Thursday Night | 59°F | Light Rain Likely | 2 to 8 mph SW | 61% |
| Friday | 70°F | Light Rain Likely | 3 mph N | 61% |
| Friday Night | 49°F | Chance Light Rain then Partly Cloudy | 2 to 7 mph NW | 29% |
| Saturday | 62°F | Mostly Sunny | 7 to 14 mph NW | 9% |
| Saturday Night | 43°F | Partly Cloudy | 13 mph W | 9% |
| Sunday | 60°F | Mostly Sunny | 10 to 14 mph NW | 4% |
| Sunday Night | 41°F | Mostly Clear | 8 to 12 mph W | 3% |
| Monday | 60°F | Sunny | 12 to 17 mph W | 4% |
| Monday Night | 40°F | Mostly Clear | 6 to 12 mph W | 4% |
| Tuesday | 64°F | Sunny | 7 to 14 mph W | 2% |
| Tuesday Night | 41°F | Mostly Clear | 9 mph W | 0% |
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 Nov 4, 2026.