Mountain Spring Lake, NY Weather Forecast
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Mountain Spring Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Mostly Cloudy | Mostly Cloudy | Showers Likely | Chance of Showers | Sunny | Partly Cloudy | Partly Sunny | Showers Likely | Showers | Chance of Showers | Partly Sunny | Chance of Showers |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C |
| POP: 70% | POP: 40% | POP: 60% | POP: 70% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM EDT Wed Sep 16 2026 

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Issued: 200 PM EDT Wed Sep 16 2026
Key Messages
1) A weak surface low will bring rain showers to the region on Thursday with no significant impacts expected.
2) Dry and cool weather returns Friday into Saturday, before confidence increases on a low pressure system bringing a widespread rainfall on Sunday.
Discussion
... KEY MESSAGE 1... Mainly dry conditions will continue through tonight. Enough breaks in the clouds could allow for some patchy fog to form tonight. Otherwise, it will not be as cool as previous nights with lows in the ...
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