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.

Fair

58°F

14°C

Humidity 67%
Wind Speed S 7 mph
Barometer 29.87 in (1012.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 7 Oct 6:56 pm EDT
Extended Forecast for

Rock Valley NY

  • Tonight

    Tonight: Mostly clear, with a low around 50. South wind around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Light west wind.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60. Light west wind increasing to 5 to 9 mph in the morning.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Light northwest wind.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers after 8am. High near 62. Chance of precipitation is 100%.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 50. South wind around 6 mph.
Thursday
Sunny, with a high near 64. West wind 5 to 9 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 44. Light west wind.
Friday
Sunny, with a high near 60. Light west wind increasing to 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 43. Light northwest wind.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Showers after 8am. High near 62. Chance of precipitation is 100%.
Sunday Night
Showers likely, mainly before 2am. Cloudy, with a low around 54. Chance of precipitation is 70%.
Columbus Day
A chance of showers before 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
A chance of showers. Partly sunny, with a high near 59. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 50.
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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:
2:30 pm EDT Oct 7, 2026
Forecast Valid:
7pm EDT Oct 7, 2026-6pm EDT Oct 14, 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