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Jennerstown, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Jennerstown, a borough in Somerset County, Pennsylvania.

This Afternoon
73°F
Sunny
Sunny, with a high near 73. South wind around 6 mph.

7-day forecast for Jennerstown

WhenTempForecastWindPrecip
This Afternoon 73°F Sunny 6 mph S 1%
Tonight 48°F Mostly Clear 5 mph S 2%
Wednesday 73°F Partly Sunny 2 to 10 mph S 2%
Wednesday Night 58°F Rain Showers 5 to 9 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 18%
Friday 62°F Slight Chance Rain Showers 0 to 5 mph W 24%
Friday Night 42°F Chance Rain Showers 2 mph NW 34%
Saturday 52°F Chance Rain Showers 3 to 12 mph W 38%
Saturday Night 35°F Chance Rain Showers 3 to 7 mph W 38%
Sunday 51°F Chance Rain Showers 3 to 12 mph W 25%
Sunday Night 33°F Chance Rain Showers 7 to 10 mph W 26%
Monday 51°F Chance Rain Showers 10 to 16 mph W 35%
Monday Night 35°F Chance Rain Showers 8 to 12 mph W 35%

Forecast source: National Weather Service (api.weather.gov) for Jennerstown (40.163, -79.061). Updated through the day.

Growing snapshot for Jennerstown

Last spring frost
May 6
First fall frost
Oct 12
Growing season
159 days
Hardiness zone
6a

More local growing data for Jennerstown: nearby ZIP 15547 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Laurel Summit, Pa (3.8 mi from Jennerstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.