Donora, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Donora, a borough in Washington County, Pennsylvania.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. Southeast wind around 6 mph.
7-day forecast for Donora
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 6 mph SE | 2% |
| Wednesday | 77°F | Partly Sunny | 3 to 9 mph S | 8% |
| Wednesday Night | 61°F | Light Rain | 12 mph S | 99% |
| Thursday | 70°F | Chance Light Rain | 8 to 13 mph SW | 41% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 7 mph SW | 9% |
| Friday | 65°F | Partly Sunny | 2 to 7 mph W | 13% |
| Friday Night | 44°F | Chance Light Rain | 3 to 7 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 | 56°F | Partly Sunny then Slight Chance Light Rain | 5 to 12 mph SW | 16% |
| Sunday Night | 35°F | Slight Chance Light Rain | 12 mph SW | 23% |
| Monday | 56°F | Chance Light Rain | 10 to 15 mph W | 32% |
| Monday Night | 36°F | Chance Light Rain then Partly Cloudy | 14 mph SW | 32% |
| Tuesday | 60°F | Mostly Sunny | 14 to 18 mph SW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Donora (40.180, -79.862). Updated through the day.
Growing snapshot for Donora
Last spring frost
Apr 27
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6b
More local growing data for Donora: nearby ZIP 15033 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Donora 1 Sw, Pa (1.2 mi from Donora). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.