National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Overcast

57°F

14°C

Humidity 74%
Wind Speed W 12 G 17 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Jun 5:56 am EDT
Extended Forecast for

Rock Valley NY

  • Today

    Today: Mostly sunny, with a high near 70. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73. West wind 3 to 7 mph.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Increasing clouds, with a low around 53. Calm wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 66. East wind 3 to 8 mph. Chance of precipitation is 100%.

    High: 66 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 70. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 73. West wind 3 to 7 mph.
Sunday Night
A chance of showers after 2am. Increasing clouds, with a low around 53. Calm wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 66. East wind 3 to 8 mph. Chance of precipitation is 100%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rock Valley NY
 41.9°N 75.07°W (Elev. 1821 ft)
Last Update:
6:10 am EDT Jun 20, 2026
Forecast Valid:
6am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation