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Collegeville, PA Weather & Growing Conditions

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

Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. East wind 5 to 10 mph.

7-day forecast for Collegeville

WhenTempForecastWindPrecip
Today 76°F Mostly Sunny 5 to 10 mph E 2%
Tonight 59°F Mostly Cloudy then Slight Chance Rain Showers 5 to 10 mph E 23%
Sunday 75°F Rain Showers Likely 5 to 10 mph S 57%
Sunday Night 57°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms 5 to 10 mph NW 83%
Monday 69°F Chance Rain Showers 5 to 10 mph NE 25%
Monday Night 50°F Chance Rain Showers 5 to 10 mph NE 36%
Tuesday 63°F Chance Rain Showers 10 to 15 mph NE 41%
Tuesday Night 49°F Chance Rain Showers 10 to 15 mph NE 38%
Wednesday 63°F Chance Rain Showers 15 mph NE 30%
Wednesday Night 49°F Chance Rain Showers 15 mph NE 32%
Thursday 62°F Chance Rain Showers 15 mph NE 33%
Thursday Night 48°F Chance Rain Showers 10 to 15 mph NE 33%
Friday 66°F Chance Rain Showers 10 to 15 mph N 25%
Friday Night 49°F Slight Chance Rain Showers 5 to 10 mph N 24%

Forecast source: National Weather Service (api.weather.gov) for Collegeville (40.187, -75.458). Updated through the day.

Growing snapshot for Collegeville

Last spring frost
Apr 24
First fall frost
Oct 15
Growing season
173 days
Hardiness zone
7a

More local growing data for Collegeville: nearby ZIP 19426 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Graterford 1 E, Pa (2.9 mi from Collegeville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.