St. Peter, PA 7-Day Weather Forecast
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St. Peter Weather Forecast


St. Peter, PA Weather Forecast Date: 300 AM EDT Sun Aug 16 2026
Weather forecast for St. Peter, PA
| Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly cloudy with a slight chance of showers and thunderstorms. Near steady temperature in the upper 60s. East winds around 5 mph. Chance of rain 20%. |
| Sun Hi: 79°FHi: 26°C Lo: 69°F Lo: 21°C |
Sunday... Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Some thunderstorms May produce heavy rainfall in the afternoon. Humid with highs in the upper 70s. Southeast winds around 5 mph, becoming southwest around 5 mph in the afternoon. Chance of rain near 100%. |
| Mon Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Monday... Mostly sunny. A chance of showers in the afternoon. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 50%. |
| Tue Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Tuesday... Sunny. Highs in the upper 70s. |
| Wed Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Wednesday... Mostly sunny. Highs in the lower 80s. |
| Thu Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Thursday... Mostly sunny. A chance of showers in the morning. Highs in the mid 70s. Chance of rain 50%. |
| Fri Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Friday... Mostly sunny. Highs in the upper 70s. |
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