Mount Jackson, PA Weather & Growing Conditions
Today
74°F
Partly Sunny then Chance Light Rain
A chance of rain after 1pm. Partly sunny, with a high near 74. South wind 3 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Partly Sunny then Chance Light Rain | 3 to 10 mph S | 53% |
| Tonight | 58°F | Light Rain | 7 to 12 mph S | 98% |
| Thursday | 68°F | Partly Sunny | 6 to 10 mph SW | 4% |
| Thursday Night | 45°F | Partly Cloudy | 1 to 5 mph SW | 0% |
| Friday | 61°F | Chance Light Rain | 1 to 6 mph SW | 28% |
| Friday Night | 39°F | Chance Light Rain | 2 to 6 mph W | 47% |
| Saturday | 52°F | Chance Light Rain | 7 to 10 mph W | 41% |
| Saturday Night | 33°F | Chance Light Rain | 3 to 7 mph W | 37% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 32°F | Partly Cloudy | 7 mph W | 6% |
| Monday | 56°F | Mostly Sunny | 5 to 9 mph W | 14% |
| Monday Night | 33°F | Mostly Clear | 6 mph SW | 14% |
| Tuesday | 60°F | Mostly Sunny | 7 to 10 mph SW | 4% |
| Tuesday Night | 32°F | Partly Cloudy | 2 to 6 mph W | 4% |
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 Nov 4, 2026.