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Upper Ste. Clair High School, PA Weather Forecast
Upper Ste. Clair High School, PA Weather Forecast Date: 1138 PM EDT Sun Aug 16 2026
The area/counties/county of: Allegheny, including the city of Pittsburgh Metro Area.or toggle through each period.
Rest of Tonight... Considerable cloudiness. A chance of showers and thunderstorms late this evening, then a slight chance of showers and thunderstorms. Some thunderstorms May produce heavy rainfall. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 50%.
Monday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. West winds 5 to 10 mph. Chance of rain 50%.
Monday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Patchy fog after midnight. Humid with lows around 60. North winds 5 to 10 mph. Chance of rain 50%.
Tuesday... Patchy fog in the morning. Mostly sunny. Highs in the lower 80s. Northwest winds around 5 mph.
Tuesday Night... Mainly clear. Lows in the lower 60s. Southwest winds around 5 mph.
Wednesday... Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 50%.
Wednesday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 50%.
Thursday... Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms in the morning. A chance of showers. Highs in the upper 70s. Chance of rain 50%.
Thursday Night... Partly cloudy. Lows in the upper 50s.
Friday... Partly cloudy. Highs in the upper 70s.
Friday Night... Partly cloudy. Lows in the upper 50s.
Saturday... Partly cloudy. Highs in the upper 70s.
Saturday Night... Mostly cloudy with a chance of showers. Lows around 60. Chance of rain 30%.
POP = Probability of Precipitation
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