Weather WorldSt. Peters, PA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
St. Peters Weather Forecast
St. Peters, PA Weather Forecast Date: 400 PM EDT Sun Aug 09 2026
Weather forecast for St. Peters, PA
Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly clear. Lows in the upper 60s. West winds around 5 mph this evening, becoming light and variable. |
Mon Hi: 90°FHi: 32°C Lo: 70°F Lo: 21°C |
Monday... Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Hot with highs around 90. West winds 5 to 10 mph. Chance of rain 50%. |
Tue Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly sunny. A chance of showers in the afternoon. Hot with highs in the mid 80s. Northwest winds 5 to 10 mph. Chance of rain 50%. |
Wed Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Wednesday... Mostly sunny. Highs in the mid 80s. |
| Thu Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Thursday... Mostly sunny. Highs in the mid 80s. |
| Fri Hi: 80°FHi: 27°C Lo: 60°F Lo: 16°C |
Friday... Mostly sunny. Highs around 80. |
| Sat Hi: 79°FHi: 26°C Lo: 60°F Lo: 16°C |
Saturday... Sunny. Highs in the upper 70s. |
St. Peters Radar Loop
Use the map search tool if you want to place a location marker on the radar map...