Jennerstown, PA Weather & Growing Conditions
Tonight
48°F
Mostly Clear
Mostly clear, with a low around 48. South wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Clear | 2 mph S | 0% |
| Wednesday | 72°F | Partly Sunny | 1 to 12 mph S | 0% |
| Wednesday Night | 58°F | Rain Showers | 6 to 10 mph S | 99% |
| Thursday | 68°F | Rain Showers Likely | 5 to 10 mph SW | 68% |
| Thursday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SW | 19% |
| Friday | 62°F | Slight Chance Rain Showers | 1 to 5 mph W | 24% |
| Friday Night | 41°F | Chance Rain Showers | 2 mph NW | 32% |
| Saturday | 52°F | Chance Rain Showers | 3 to 12 mph W | 37% |
| Saturday Night | 34°F | Chance Rain Showers | 3 to 8 mph W | 37% |
| Sunday | 51°F | Slight Chance Rain Showers | 5 to 12 mph W | 23% |
| Sunday Night | 33°F | Chance Rain Showers | 8 to 12 mph W | 26% |
| Monday | 51°F | Chance Rain Showers | 12 to 16 mph W | 35% |
| Monday Night | 34°F | Chance Rain Showers | 9 to 13 mph W | 35% |
| Tuesday | 55°F | Slight Chance Rain Showers then Mostly Sunny | 13 to 18 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jennerstown, PA
Last spring frost
May 6
First fall frost
Oct 12
Growing season
159 days
Hardiness zone
6a
Explore more for Jennerstown, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Laurel Summit, Pa (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.