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Summit, PA Weather Forecast
Summit, PA Weather Forecast Date: 430 PM EDT Fri Sep 04 2026
The area/counties/county of: Cambria, including the city of Johnstown.or toggle through each period.
Tonight... Mostly cloudy with a 20% chance of showers. Lows in the lower 60s. West winds 5 to 10 mph.
Saturday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Humid with highs in the mid 70s. Northwest winds around 5 mph. Chance of rain 40%.
Saturday Night... Partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.
Sunday... Sunny. Highs in the lower 70s. Northeast winds around 5 mph.
Sunday Night... Mostly clear. Lows in the lower 50s. East winds around 5 mph.
Labor Day... Sunny. Highs in the mid 70s.
Monday Night... Mostly clear. Lows in the mid 50s.
Tuesday... Mostly sunny. Highs in the upper 70s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows around 60.
Wednesday... Partly sunny. Very warm with highs in the lower 80s.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50%.
Thursday... Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 50%.
Thursday Night... Mostly cloudy. A chance of showers in the evening. Cooler with lows in the mid 50s. Chance of rain 40%.
POP = Probability of Precipitation
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