Mount Jackson, PA Weather & Growing Conditions
Overnight
56°F
Mostly Cloudy
Mostly cloudy, with a low around 56. Northeast wind 0 to 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 0 to 3 mph NE | 1% |
| Saturday | 77°F | Mostly Cloudy | 5 mph E | 5% |
| Saturday Night | 62°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph SE | 78% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 8 mph SW | 92% |
| Sunday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph N | 40% |
| Monday | 68°F | Mostly Cloudy then Chance Rain Showers | 9 mph NE | 26% |
| Monday Night | 51°F | Chance Rain Showers | 10 mph NE | 53% |
| Tuesday | 63°F | Chance Rain Showers | 14 mph E | 53% |
| Tuesday Night | 50°F | Rain Showers Likely | 15 mph E | 57% |
| Wednesday | 64°F | Rain Showers Likely | 15 mph E | 57% |
| Wednesday Night | 50°F | Showers And Thunderstorms Likely | 10 to 14 mph E | 63% |
| Thursday | 66°F | Rain Showers Likely | 10 mph E | 60% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 3 to 7 mph E | 20% |
| Friday | 69°F | Slight Chance Rain Showers | 7 mph NE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Jackson, PA
Last spring frost
Apr 30
First fall frost
Oct 23
Growing season
175 days
Hardiness zone
6a
Explore more for Mount Jackson, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, New Castle 1 N, Pa (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.