Mount Aetna, PA Weather & Growing Conditions
Tonight
60°F
Mostly Cloudy then Rain Showers
Rain showers after midnight. Mostly cloudy, with a low around 60. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Mostly Cloudy then Rain Showers | 5 to 10 mph E | 76% |
| Sunday | 77°F | Rain Showers | 10 mph S | 96% |
| Sunday Night | 55°F | Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph NW | 78% |
| Monday | 71°F | Partly Sunny then Chance Rain Showers | 10 mph NE | 27% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Tuesday | 64°F | Chance Rain Showers | 15 mph NE | 49% |
| Tuesday Night | 49°F | Chance Rain Showers | 15 mph NE | 40% |
| Wednesday | 62°F | Chance Rain Showers | 15 mph NE | 32% |
| Wednesday Night | 48°F | Chance Rain Showers | 15 mph NE | 26% |
| Thursday | 62°F | Slight Chance Rain Showers | 15 mph NE | 23% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Friday | 67°F | Chance Rain Showers | 15 mph N | 27% |
| Friday Night | 49°F | Chance Rain Showers | 10 to 15 mph N | 27% |
| Saturday | 70°F | Slight Chance Rain Showers | 15 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Aetna, PA
Last spring frost
Apr 20
First fall frost
Oct 25
Growing season
185 days
Hardiness zone
7a
Explore more for Mount Aetna, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Lebanon 2 W, Pa (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.