Weather WorldUpper St Clair, PA 7-Day Weather Forecast
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Upper St Clair Weather Forecast
Upper St Clair, PA Weather Forecast Date: 502 PM EDT Mon Oct 26 2026
Weather forecast for Upper St Clair, PA
Tonight Lo: 45°F Lo: 7°C |
Tonight... Partly cloudy. Areas of fog after midnight. Lows in the mid 40s. West winds around 5 mph this evening, becoming light and variable. |
Tue Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Tuesday... Patchy fog in the morning. Partly cloudy. Highs in the upper 60s. Light and variable winds, becoming northeast around 5 mph in the afternoon. |
| Wed Hi: 70°FHi: 21°C Lo: 49°F Lo: 9°C |
Wednesday... Patchy fog in the morning. Mostly cloudy. Highs around 70. Southeast winds around 5 mph. |
Thu Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Thursday... Mostly sunny. Highs in the lower 70s. |
Fri Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Friday... Partly cloudy. Highs in the lower 70s. |
Sat Hi: 70°FHi: 21°C Lo: 50°F Lo: 10°C |
Saturday... Partly sunny. Highs around 70. |
Sun Hi: 69°FHi: 21°C Lo: 55°F Lo: 13°C |
Sunday... Considerable cloudiness. A chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 40%. |
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