Hostetter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hostetter, a community in Westmoreland County, Pennsylvania.
Tonight
58°F
Partly Cloudy then Areas Of Fog
Areas of fog between 2am and 3am. Partly cloudy, with a low around 58. Northeast wind 0 to 6 mph.
7-day forecast for Hostetter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Partly Cloudy then Areas Of Fog | 0 to 6 mph NE | 10% |
| Saturday | 78°F | Partly Sunny | 5 to 8 mph E | 3% |
| Saturday Night | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 to 13 mph SE | 53% |
| Sunday | 76°F | Showers And Thunderstorms | 8 to 13 mph SW | 95% |
| Sunday Night | 60°F | Showers And Thunderstorms | 9 mph N | 95% |
| Monday | 69°F | Chance Rain Showers | 9 to 13 mph NE | 44% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 15 mph E | 69% |
| Tuesday | 65°F | Showers And Thunderstorms Likely | 15 to 20 mph E | 73% |
| Tuesday Night | 54°F | Showers And Thunderstorms Likely | 18 to 22 mph E | 69% |
| Wednesday | 62°F | Showers And Thunderstorms Likely | 18 mph E | 65% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 13 to 21 mph E | 53% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 13 mph E | 47% |
| Thursday Night | 52°F | Chance Rain Showers | 0 to 13 mph NE | 28% |
| Friday | 70°F | Slight Chance Rain Showers | 1 to 12 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Hostetter (40.264, -79.398). Updated through the day.
Growing snapshot for Hostetter
Last spring frost
May 1
First fall frost
Oct 13
Growing season
164 days
Hardiness zone
6b
More local growing data for Hostetter: nearby ZIP 15638 weather · frost dates · planting calendar · Pennsylvania frost dates
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Level Green
Climate data from the nearest NOAA station, Mt Pleasant, Pa (6.2 mi from Hostetter). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.