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Frederick, PA 7-Day Night Weather Forecast
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Frederick, PA Weather Forecast
Frederick, PA Weather Forecast Date: 400 PM EDT Wed Sep 02 2026
The area/counties/county of: Western Montgomery, including the cities of: Collegeville and Pottstown.or toggle through each period.
Tonight... Showers likely. A slight chance of thunderstorms this evening, then a chance of thunderstorms after midnight. Lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 60%.
Thursday... Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers. A chance of thunderstorms, mainly in the morning. Warmer with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 50%.
Thursday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Humid with lows around 70. West winds around 5 mph. Chance of rain 50%.
Friday... Partly sunny. A chance of showers in the afternoon. Hot with highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50%.
Friday Night... Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Humid with lows in the lower 60s. Northwest winds around 5 mph. Chance of rain 50%.
Saturday... Sunny. Highs around 80.
Saturday Night... Mostly clear. Lows in the upper 50s.
Sunday... Sunny. Highs in the mid 70s.
Sunday Night... Mostly clear. Lows in the mid 50s.
Labor Day... Sunny. Highs in the upper 70s.
Monday Night... Partly cloudy. Lows in the upper 50s.
Tuesday... Mostly sunny. Highs around 80.
Tuesday Night... Partly cloudy. Lows around 60.
POP = Probability of Precipitation
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