Weather World
City of St. Marys, PASt. Marys, PA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
St. Marys Weather Forecast
St. Marys, PA Weather Forecast Date: 1200 AM EST Wed Mar 04 2026
Weather forecast for St. Marys, PA
Tonight Lo: 39°F Lo: 4°C |
Tonight... Cloudy with a 20% chance of rain. Areas of fog. Near steady temperature in the upper 30s. Northwest winds around 5 mph. |
Wed Hi: 51°FHi: 11°C Lo: 41°F Lo: 5°C |
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. Areas of fog in the morning. Not as cool with highs in the lower 50s. Northeast winds around 5 mph, becoming southeast in the afternoon. |
Thu Hi: 55°FHi: 13°C Lo: 50°F Lo: 10°C |
Thursday... Showers. Highs in the mid 50s. South winds around 5 mph. Chance of rain 90%. |
| Fri Hi: 61°FHi: 16°C Lo: 51°F Lo: 11°C |
Friday... Mostly cloudy in the morning, then becoming partly sunny. Warm with highs in the lower 60s. |
Sat Hi: 65°FHi: 18°C Lo: 41°F Lo: 5°C |
Saturday... Mostly cloudy. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Warm with highs in the mid 60s. Chance of rain 90%. |
Sun Hi: 55°FHi: 13°C Lo: 41°F Lo: 5°C |
Sunday... Mostly sunny. Highs in the mid 50s. |
| Mon Hi: 59°FHi: 15°C Lo: 45°F Lo: 7°C |
Monday... Mostly sunny. Highs in the upper 50s. |
St. Marys Radar Loop
Use the map search tool if you want to place a location marker on the radar map...