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St. Marks School Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 | |  |  | | | |  | | |  | |
| Rain | Rain | Partly Sunny | Chance of Rain | Chance of Rain | Chance of Rain | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 65°FHi: 18°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C |
| POP: 80% | POP: 70% | POP: 50% | POP: 50% | POP: 40% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 210 PM EDT Sun Sep 20 2026 
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Issued: 801 PM EDT Sun Sep 20 2026
Key Messages
1) Periods of rain, mainly light, will come to end from NW to SE tonight with a cold frontal passage.
2) A frontal wave is expected to bring another chance of rain to the area Monday night to Tuesday along with gusty NE winds.
3) A prolonged period of NE gales is possible, especially on the ocean waters, from Tuesday through the end of the week. There is the potential for high surf, dangerous rip currents, and beach erosion.
Discussion
... .KEY MESSAGE 1... A frontal wave will pass to th...