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Summerville, PA Weather & Growing Conditions

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

Today
74°F
Partly Sunny
Partly sunny, with a high near 74. South wind around 7 mph.

7-day forecast for Summerville

WhenTempForecastWindPrecip
Today 74°F Partly Sunny 7 mph S 11%
Tonight 59°F Light Rain 7 mph S 86%
Thursday 68°F Chance Light Rain then Mostly Sunny 6 to 10 mph SW 32%
Thursday Night 46°F Partly Cloudy 1 to 5 mph SW 0%
Friday 60°F Mostly Cloudy then Chance Light Rain 2 to 7 mph SW 37%
Friday Night 38°F Chance Light Rain 3 mph W 47%
Saturday 51°F Light Rain Likely 5 to 10 mph W 57%
Saturday Night 34°F Light Rain Likely 7 mph W 57%
Sunday 53°F Mostly Sunny 6 to 10 mph W 7%
Sunday Night 32°F Partly Cloudy 7 mph W 12%
Monday 56°F Mostly Sunny 7 to 12 mph W 14%
Monday Night 33°F Mostly Clear 3 to 7 mph W 5%
Tuesday 60°F Mostly Sunny 7 to 12 mph W 3%
Tuesday Night 32°F Partly Cloudy 1 to 5 mph W 2%

Forecast source: National Weather Service (api.weather.gov) for Summerville (41.116, -79.188). Updated through the day.

Growing snapshot for Summerville

Last spring frost
May 10
First fall frost
Oct 12
Growing season
155 days
Hardiness zone
6a

More local growing data for Summerville: nearby ZIP 15864 weather · frost dates · planting calendar · Pennsylvania frost dates

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Climate data from the nearest NOAA station, Putneyville 2 Se Dam, Pa (13.2 mi from Summerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.