Washington, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington, a city in Washington County, Pennsylvania.
Overnight
56°F
Clear
Clear, with a low around 56. Northeast wind around 2 mph.
7-day forecast for Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Clear | 2 mph NE | 0% |
| Tuesday | 85°F | Patchy Fog then Sunny | 5 mph E | 0% |
| Tuesday Night | 67°F | Partly Cloudy | 5 mph SE | 1% |
| Wednesday | 86°F | Partly Sunny then Scattered Showers And Thunderstorms | 2 to 6 mph S | 35% |
| Wednesday Night | 68°F | Scattered Showers And Thunderstorms | 5 mph S | 50% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 73% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 73% |
| Friday | 83°F | Showers And Thunderstorms | 5 to 8 mph SW | 83% |
| Friday Night | 66°F | Showers And Thunderstorms | 3 to 7 mph SW | 83% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 5 to 9 mph SW | 56% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 55% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 22% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 22% |
| Monday | 86°F | Chance Showers And Thunderstorms | 8 to 12 mph SW | 33% |
Forecast source: National Weather Service (api.weather.gov) for Washington (40.174, -80.247). Updated through the day.
Growing snapshot for Washington
Last spring frost
Apr 24
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6b
More local growing data for Washington: nearby ZIP 15301 weather · frost dates · planting calendar · Pennsylvania frost dates
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East Washington
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Climate data from the nearest NOAA station, Washington 3 Ne, Pa (3.5 mi from Washington). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.