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

42°F

6°C

Humidity 79%
Wind Speed W 6 mph
Barometer 29.94 in (1014.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Nov 3:56 am EST
Extended Forecast for

Rock Valley NY

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 54. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 39. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Slight Chance
    Rain then
    Rain

  • Thursday

    Thursday: Rain. High near 46. Southeast wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain before 1am, then snow, possibly mixed with rain. Low around 32. North wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: Snow, possibly mixed with rain, becoming all snow after 10am. High near 39. Northwest wind around 9 mph. Chance of precipitation is 80%.

    High: 39 °F

    Rain/Snow
    then Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

    Low: 28 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

Detailed Forecast

Veterans Day
Mostly cloudy, with a high near 54. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
Rain, mainly after 2am. Low around 39. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 46. Southeast wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain before 1am, then snow, possibly mixed with rain. Low around 32. North wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Snow, possibly mixed with rain, becoming all snow after 10am. High near 39. Northwest wind around 9 mph. Chance of precipitation is 80%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Saturday
Mostly cloudy, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Mostly cloudy, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rock Valley NY
 41.9°N 75.1°W (Elev. 1680 ft)
Last Update:
1:30 am EST Nov 11, 2026
Forecast Valid:
4am EST Nov 11, 2026-6pm EST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation