Weather WorldSt. Mary's Lake, MD 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
St. Mary's Lake Weather Forecast
St. Mary's Lake, MD Weather Forecast Date: 226 PM EDT Fri Aug 14 2026
Weather forecast for St. Mary's Lake, MD
Today Hi: 85°FHi: 29°C Lo: 71°F Lo: 22°C |
This Afternoon... Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 80s. North winds around 5 mph. Chance of rain 50%. |
Sat Hi: 85°FHi: 29°C Lo: 71°F Lo: 22°C |
Saturday... Sunny. Highs in the mid 80s. Northeast winds around 5 mph. |
| Sun Hi: 85°FHi: 29°C Lo: 75°F Lo: 24°C |
Sunday... Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 60%. |
| Mon Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Monday... Mostly sunny. Highs in the upper 80s. |
| Tue Hi: 85°FHi: 29°C Lo: 70°F Lo: 21°C |
Tuesday... Sunny. Highs in the mid 80s. |
| Wed Hi: 89°FHi: 32°C Lo: 75°F Lo: 24°C |
Wednesday... Sunny. Highs in the upper 80s. |
Thu Hi: 90°FHi: 32°C |
Thursday... Mostly sunny with a chance of showers. Highs around 90. Chance of rain 40%. |
St. Mary's Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...