Grapeville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grapeville, a community in Westmoreland County, Pennsylvania.
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. South wind around 5 mph.
7-day forecast for Grapeville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 5 mph S | 1% |
| Wednesday | 77°F | Partly Sunny | 2 to 8 mph S | 3% |
| Wednesday Night | 59°F | Light Rain | 12 mph S | 94% |
| Thursday | 69°F | Light Rain Likely then Partly Sunny | 8 to 16 mph SW | 62% |
| Thursday Night | 47°F | Partly Cloudy | 3 to 7 mph SW | 1% |
| Friday | 63°F | Partly Sunny then Slight Chance Light Rain | 5 to 9 mph SW | 20% |
| Friday Night | 41°F | Chance Light Rain | 6 to 9 mph W | 38% |
| Saturday | 52°F | Chance Light Rain | 9 to 16 mph W | 38% |
| Saturday Night | 36°F | Chance Light Rain | 8 to 14 mph W | 26% |
| Sunday | 54°F | Partly Sunny | 8 to 17 mph W | 11% |
| Sunday Night | 33°F | Partly Cloudy | 9 to 14 mph SW | 7% |
| Monday | 54°F | Mostly Sunny | 10 to 17 mph W | 13% |
| Monday Night | 34°F | Mostly Clear | 8 to 14 mph SW | 13% |
| Tuesday | 59°F | Mostly Sunny | 14 to 21 mph SW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Grapeville (40.325, -79.606). Updated through the day.
Growing snapshot for Grapeville
Last spring frost
Apr 22
First fall frost
Oct 25
Growing season
186 days
Hardiness zone
6b
More local growing data for Grapeville: nearby ZIP 15634 weather · frost dates · planting calendar · Pennsylvania frost dates
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Level Green
Climate data from the nearest NOAA station, Murrysville 2 Sw, Pa (8.6 mi from Grapeville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.