Etna, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Etna, a borough in Allegheny County, Pennsylvania.
This Afternoon
77°F
Partly Sunny
Partly sunny, with a high near 77. North wind around 8 mph.
7-day forecast for Etna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Partly Sunny | 8 mph N | 10% |
| Tonight | 59°F | Partly Cloudy | 5 to 8 mph NE | 10% |
| Saturday | 79°F | Partly Sunny | 6 mph E | 6% |
| Saturday Night | 66°F | Mostly Cloudy then Showers And Thunderstorms Likely | 6 mph SE | 63% |
| Sunday | 78°F | Showers And Thunderstorms | 8 mph SW | 95% |
| Sunday Night | 59°F | Showers And Thunderstorms | 9 mph N | 95% |
| Monday | 70°F | Chance Rain Showers | 12 mph NE | 39% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 13 mph E | 61% |
| Tuesday | 66°F | Showers And Thunderstorms Likely | 15 mph E | 70% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 12 to 15 mph E | 69% |
| Wednesday | 64°F | Showers And Thunderstorms Likely | 14 mph E | 65% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 8 to 14 mph E | 52% |
| Thursday | 66°F | Chance Rain Showers | 9 mph E | 40% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 5 to 9 mph NE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Etna (40.495, -79.950). Updated through the day.
Growing snapshot for Etna
Last spring frost
Apr 24
First fall frost
Oct 27
Growing season
186 days
Hardiness zone
6b
More local growing data for Etna: nearby ZIP 15223 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Emsworth L/D Ohio Rvr, Pa (7.2 mi from Etna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.