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Upper Perkiomen High School, PA 7-Day Night Weather Forecast
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Upper Perkiomen High School, PA Weather Forecast
Upper Perkiomen High School, PA Weather Forecast Date: 921 PM EDT Wed Aug 19 2026
The area/counties/county of: Western Montgomery, including the cities of: Collegeville and Pottstown.or toggle through each period.
Tonight... Partly cloudy. Lows in the mid 60s. West winds around 5 mph this evening, becoming light and variable.
Thursday... Partly sunny with a chance of showers with a slight chance of thunderstorms in the morning, then mostly cloudy with showers with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with highs in the upper 70s. Temperature falling into the mid 70s in the afternoon. Northeast winds around 5 mph. Chance of rain 90%.
Thursday Night... Mostly cloudy. Showers likely in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 60s. North winds around 5 mph. Chance of rain 70%.
Friday... Partly sunny. A chance of showers in the afternoon. Highs around 80. Northeast winds around 5 mph. Chance of rain 30%.
Friday Night... Mostly cloudy with a 30% chance of showers. Humid with lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable.
Saturday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 70%.
Saturday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 70%.
Sunday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40%.
Sunday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 60s. Chance of rain 40%.
Monday... Sunny. Highs around 80.
Monday Night... Mostly clear. Lows in the upper 50s.
Tuesday... Sunny. Highs around 80.
Tuesday Night... Partly cloudy. Lows in the lower 60s.
POP = Probability of Precipitation
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