Laboratory, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Laboratory, a community in Washington County, Pennsylvania.
Overnight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. Northeast wind around 5 mph.
7-day forecast for Laboratory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Partly Cloudy | 5 mph NE | 1% |
| Saturday | 78°F | Partly Sunny | 5 mph E | 4% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely | 3 to 8 mph SE | 58% |
| Sunday | 77°F | Showers And Thunderstorms | 10 mph SW | 96% |
| Sunday Night | 56°F | Showers And Thunderstorms | 8 to 12 mph N | 97% |
| Monday | 66°F | Chance Rain Showers | 13 mph NE | 43% |
| Monday Night | 55°F | Showers And Thunderstorms Likely | 14 mph NE | 69% |
| Tuesday | 63°F | Showers And Thunderstorms Likely | 15 mph E | 69% |
| Tuesday Night | 52°F | Showers And Thunderstorms Likely | 16 mph E | 65% |
| Wednesday | 62°F | Rain Showers Likely | 15 mph E | 65% |
| Wednesday Night | 51°F | Showers And Thunderstorms Likely | 9 to 14 mph E | 60% |
| Thursday | 64°F | Rain Showers Likely | 10 mph E | 55% |
| Thursday Night | 50°F | Chance Rain Showers | 6 to 9 mph NE | 33% |
| Friday | 66°F | Partly Sunny then Slight Chance Rain Showers | 9 mph NE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Laboratory (40.151, -80.215). Updated through the day.
Growing snapshot for Laboratory
Last spring frost
Apr 24
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6b
More local growing data for Laboratory: nearby ZIP 15301 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Washington 3 Ne, Pa (3.5 mi from Laboratory). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.