Sullivan County, NY Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Sullivan County Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Chance of Showers | Partly Cloudy | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Partly Sunny | Partly Cloudy | Partly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C |
| POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 935 AM EDT Thu Oct 01 2026 

Sullivan County Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Sullivan County Weather Map
Sullivan County Quick Facts
Sullivan County Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 659 AM EDT Thu Oct 1 2026
Key Messages
1) A warm front will bring scattered rain showers to the area this morning, with mainly dry conditions returning this afternoon. Then a cold front will bring widespread rain showers on Friday.
2) A system passing by to the south may bring a few rain showers east of Interstate 81 and south of Interstate 88 on Sunday. Otherwise, high pressure will bring mainly dry and cooler conditions this weekend through at least the middle of next week.
Discussion
... KEY MESSAGE 1...
A warm front is br...
Weather World