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

61°F

16°C

Humidity 43%
Wind Speed W 7 mph
Barometer 30.47 in (1032.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Oct 12:56 pm EDT
Extended Forecast for

Grahamsville NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 65. Light southeast wind.

    High: 65 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Showers, mainly after 1pm. High near 59. East wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 52. East wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Columbus Day

    Columbus Day: A chance of showers before 8am. Partly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Partly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 65. Light southeast wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind.
Sunday
Showers, mainly after 1pm. High near 59. East wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 52. East wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Columbus Day
A chance of showers before 8am. Partly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 61.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grahamsville NY
 41.84°N 74.55°W (Elev. 1115 ft)
Last Update:
1:04 pm EDT Oct 10, 2026
Forecast Valid:
1pm EDT Oct 10, 2026-6pm EDT Oct 16, 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