Whitehall, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitehall, a borough in Allegheny County, Pennsylvania.
This Afternoon
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 72 in the afternoon. South wind around 7 mph.
7-day forecast for Whitehall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 7 mph S | 1% |
| Tonight | 54°F | Mostly Clear | 7 mph S | 2% |
| Wednesday | 77°F | Partly Sunny | 5 to 12 mph S | 8% |
| Wednesday Night | 61°F | Light Rain | 12 mph S | 99% |
| Thursday | 70°F | Chance Light Rain | 8 to 14 mph SW | 28% |
| Thursday Night | 50°F | Partly Cloudy | 2 to 7 mph SW | 4% |
| Friday | 65°F | Partly Sunny | 2 to 8 mph W | 10% |
| Friday Night | 46°F | Slight Chance Light Rain | 5 to 8 mph NW | 24% |
| Saturday | 56°F | Chance Light Rain | 8 to 13 mph W | 28% |
| Saturday Night | 40°F | Chance Light Rain then Mostly Cloudy | 6 to 9 mph W | 26% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 6 to 12 mph SW | 16% |
| Sunday Night | 39°F | Slight Chance Light Rain | 12 mph W | 19% |
| Monday | 56°F | Chance Light Rain | 12 to 16 mph W | 28% |
| Monday Night | 40°F | Chance Light Rain then Partly Cloudy | 10 to 14 mph SW | 28% |
Forecast source: National Weather Service (api.weather.gov) for Whitehall (40.360, -79.990). Updated through the day.
Growing snapshot for Whitehall
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Whitehall: nearby ZIP 15236 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (2.9 mi from Whitehall). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.