Webster, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Webster, a community in Westmoreland County, Pennsylvania.
This Afternoon
77°F
Sunny
Sunny, with a high near 77. South wind around 1 mph.
7-day forecast for Webster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 1 mph S | 1% |
| Tonight | 52°F | Mostly Clear | 2 to 6 mph S | 2% |
| Wednesday | 77°F | Partly Sunny | 2 to 9 mph SE | 8% |
| Wednesday Night | 61°F | Light Rain | 9 mph S | 99% |
| Thursday | 70°F | Chance Light Rain | 8 to 13 mph SW | 43% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 6 mph SW | 9% |
| Friday | 65°F | Partly Sunny | 2 to 7 mph W | 13% |
| Friday Night | 45°F | Chance Light Rain | 6 mph NW | 28% |
| Saturday | 55°F | Chance Light Rain | 6 to 12 mph W | 30% |
| Saturday Night | 37°F | Chance Light Rain then Mostly Cloudy | 5 to 9 mph W | 28% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 5 to 12 mph SW | 16% |
| Sunday Night | 36°F | Slight Chance Light Rain | 10 mph W | 23% |
| Monday | 56°F | Chance Light Rain | 10 to 16 mph W | 32% |
| Monday Night | 36°F | Chance Light Rain then Partly Cloudy | 10 to 14 mph SW | 32% |
Forecast source: National Weather Service (api.weather.gov) for Webster (40.192, -79.851). Updated through the day.
Growing snapshot for Webster
Last spring frost
Apr 27
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6b
More local growing data for Webster: nearby ZIP 15087 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Donora 1 Sw, Pa (2.2 mi from Webster). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.