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Borough of Saint Clair, PASt. Clair, PA 7-Day Weather Forecast
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St. Clair Weather Forecast
St. Clair, PA Weather Forecast Date: 730 AM EDT Wed Oct 07 2026
Weather forecast for St. Clair, PA
Today Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Today... Sunny. Highs in the upper 60s. South winds 5 to 10 mph with gusts up to 20 mph. |
| Thu Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Thursday... Sunny. Highs around 70. West winds 5 to 10 mph with gusts up to 25 mph. |
| Fri Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Friday... Sunny. Highs in the upper 60s. Northwest winds around 5 mph. Gusts up to 20 mph in the afternoon. |
| Sat Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Saturday... Mostly sunny. Highs around 70. |
Sun Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny with a 50% chance of showers. Highs in the upper 60s. |
| Columbus Day Hi: 69°FHi: 21°C Lo: 55°F Lo: 13°C |
Columbus Day... Mostly cloudy. Showers, mainly in the morning. Highs in the upper 60s. Chance of rain 80%. |
Tue Hi: 69°FHi: 21°C |
Tuesday... Partly sunny. Highs in the upper 60s. |
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