Hostetter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hostetter, a community in Westmoreland County, Pennsylvania.
Today
84°F
Sunny
Sunny, with a high near 84. Southeast wind 0 to 5 mph.
7-day forecast for Hostetter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 0 to 5 mph SE | 0% |
| Tonight | 67°F | Partly Cloudy | 0 to 9 mph SE | 1% |
| Wednesday | 85°F | Patchy Fog then Scattered Showers And Thunderstorms | 0 to 7 mph SE | 29% |
| Wednesday Night | 69°F | Scattered Showers And Thunderstorms | 0 to 6 mph SE | 43% |
| Thursday | 84°F | Showers And Thunderstorms | 1 to 10 mph SW | 79% |
| Thursday Night | 69°F | Showers And Thunderstorms | 0 to 9 mph SW | 79% |
| Friday | 83°F | Showers And Thunderstorms | 5 to 10 mph SW | 82% |
| Friday Night | 68°F | Showers And Thunderstorms | 2 to 8 mph SW | 82% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 7 to 12 mph SW | 55% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely | 5 to 9 mph SW | 55% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 7 to 13 mph SW | 25% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 7 to 12 mph SW | 25% |
| Monday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 12 to 16 mph SW | 43% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 7 to 14 mph SW | 51% |
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 Aug 4, 2026.