Hostetter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hostetter, a community in Westmoreland County, Pennsylvania.
This Afternoon
76°F
Sunny
Sunny, with a high near 76. South wind 1 to 6 mph.
7-day forecast for Hostetter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Sunny | 1 to 6 mph S | 1% |
| Tonight | 51°F | Mostly Clear | 0 to 7 mph SE | 2% |
| Wednesday | 77°F | Partly Sunny | 2 to 12 mph SE | 3% |
| Wednesday Night | 60°F | Light Rain | 9 to 13 mph S | 99% |
| Thursday | 70°F | Light Rain Likely | 9 to 15 mph SW | 59% |
| Thursday Night | 50°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 9 mph SW | 15% |
| Friday | 65°F | Slight Chance Light Rain | 0 to 9 mph W | 20% |
| Friday Night | 44°F | Chance Light Rain | 0 to 6 mph NW | 37% |
| Saturday | 54°F | Chance Light Rain | 7 to 15 mph W | 37% |
| Saturday Night | 36°F | Chance Light Rain | 2 to 13 mph W | 31% |
| Sunday | 55°F | Slight Chance Light Rain | 6 to 15 mph SW | 18% |
| Sunday Night | 35°F | Chance Light Rain | 14 mph SW | 26% |
| Monday | 55°F | Chance Light Rain | 14 to 20 mph W | 35% |
| Monday Night | 36°F | Chance Light Rain | 13 to 17 mph SW | 35% |
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 Nov 4, 2026.