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St. Peters Weather Forecast
St. Peters, PA Weather Forecast Date: 247 AM EDT Tue Aug 18 2026
Weather forecast for St. Peters, PA
Today Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Today... Mostly sunny. Patchy fog this morning. Isolated showers and thunderstorms this afternoon. Hot with highs in the mid 80s. North winds around 5 mph. Chance of rain 20%. |
Wed Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Wednesday... Patchy fog in the morning. Sunny, hot with highs in the mid 80s. West winds around 5 mph. |
Thu Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Thursday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. Humid with highs in the lower 80s. Northwest winds around 5 mph. Chance of rain 70%. |
Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Partly sunny. Highs in the lower 80s. |
| Sat Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Saturday... Partly sunny with a 50% chance of showers. Highs in the lower 80s. |
| Sun Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Sunday... Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 50%. |
Mon Hi: 80°FHi: 27°C |
Monday... Sunny. Highs around 80. |
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