Sullivan County, NY Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Sullivan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 69. Northeast wind around 7 mph. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Sullivan County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Sullivan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 1 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 3:13 PM EDT
- Forecast office
- BGM
- Source
- NOAA / NWS
Daily Outlook
This Week in Sullivan County
Friday looks like the warmest upcoming period in Sullivan County at 85 degrees F.
Tonight is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Tuesday at about 2 to 12 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 3:13 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- BGM
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog after 4am. Mostly clear, with a low around 43. Northeast wind 0 to 6 mph. New rainfall amounts less than a tenth of an inch possible.
Patchy fog before 7am. Sunny, with a high near 71. Northwest wind 2 to 12 mph.
Partly cloudy, with a low around 46. Northwest wind 5 to 10 mph.
Sunny, with a high near 77. North wind 3 to 8 mph.
Clear, with a low around 50.
Sunny, with a high near 82.
Mostly clear, with a low around 54.
Mostly sunny, with a high near 85.
Mostly cloudy, with a low around 57.
A chance of rain showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 1
|
Mostly Sunny
|
69°F |
7 mph
NE
|
|
Tonight
Jun 1
|
Mostly Clear then Patchy Fog
|
43°F |
0 to 6 mph
NE
|
|
Tuesday
Jun 2
|
Patchy Fog then Sunny
|
71°F |
2 to 12 mph
NW
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
46°F |
5 to 10 mph
NW
|
|
Wednesday
Jun 3
|
Sunny
|
77°F |
3 to 8 mph
N
|
|
Wednesday Night
Jun 3
|
Clear
|
50°F |
0 to 6 mph
NW
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
0 to 7 mph
NW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
54°F |
0 to 6 mph
NW
|
|
Friday
Jun 5
|
Mostly Sunny
|
85°F |
0 to 9 mph
W
|
|
Friday Night
Jun 5
|
Mostly Cloudy
|
57°F |
0 to 8 mph
NW
|
|
Saturday
Jun 6
|
Mostly Sunny then Chance Rain Showers
|
84°F |
0 to 10 mph
W
|
|
Saturday Night
Jun 6
|
Chance Rain Showers
|
59°F |
0 to 9 mph
N
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
81°F |
2 to 9 mph
SE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
57°F |
9 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Sullivan County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Sullivan County.
Largest mapped city population in this region: 3,430.
