Mount Aetna, PA Weather & Growing Conditions
Tonight
48°F
Mostly Clear then Patchy Fog
Patchy fog after 2am. Mostly clear, with a low around 48. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Clear then Patchy Fog | 5 mph SE | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 6% |
| Wednesday Night | 58°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 48% |
| Thursday | 71°F | Light Rain | 5 to 10 mph S | 81% |
| Thursday Night | 59°F | Light Rain Likely | 0 to 5 mph SW | 62% |
| Friday | 68°F | Light Rain Likely | 0 to 5 mph NW | 62% |
| Friday Night | 48°F | Chance Light Rain | 0 to 5 mph NW | 51% |
| Saturday | 63°F | Slight Chance Light Rain | 5 to 15 mph NW | 17% |
| Saturday Night | 39°F | Partly Cloudy | 5 to 10 mph NW | 14% |
| Sunday | 59°F | Mostly Sunny | 5 to 10 mph W | 8% |
| Sunday Night | 38°F | Slight Chance Light Rain | 5 to 10 mph W | 22% |
| Monday | 58°F | Slight Chance Light Rain | 10 to 20 mph NW | 23% |
| Monday Night | 36°F | Slight Chance Light Rain | 5 to 15 mph W | 21% |
| Tuesday | 61°F | Slight Chance Light Rain then Mostly Sunny | 10 to 20 mph W | 15% |
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 Nov 4, 2026.