Jennerstown, PA Weather & Growing Conditions
Overnight
49°F
Partly Cloudy
Partly cloudy, with a low around 49. South wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Partly Cloudy | 1 mph S | 0% |
| Wednesday | 74°F | Partly Sunny | 1 to 10 mph S | 1% |
| Wednesday Night | 57°F | Light Rain | 6 to 9 mph S | 98% |
| Thursday | 67°F | Light Rain Likely | 5 to 12 mph SW | 63% |
| Thursday Night | 47°F | Mostly Cloudy | 3 mph SW | 4% |
| Friday | 60°F | Partly Sunny then Slight Chance Light Rain | 1 to 6 mph W | 19% |
| Friday Night | 39°F | Chance Light Rain | 1 to 5 mph W | 41% |
| Saturday | 48°F | Chance Light Rain | 6 to 13 mph W | 43% |
| Saturday Night | 34°F | Chance Light Rain | 7 to 10 mph W | 39% |
| Sunday | 49°F | Slight Chance Light Rain then Partly Sunny | 8 to 13 mph W | 15% |
| Sunday Night | 31°F | Partly Cloudy | 9 mph W | 10% |
| Monday | 50°F | Mostly Sunny then Slight Chance Light Rain | 9 to 14 mph W | 15% |
| Monday Night | 33°F | Slight Chance Light Rain then Mostly Clear | 8 mph W | 15% |
| Tuesday | 55°F | Sunny | 8 to 16 mph W | 5% |
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 (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.