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

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Overcast

68°F

20°C

Humidity 90%
Wind Speed S 12 mph
Barometer 30.06 in (1017.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 27 Aug 11:56 am EDT
Extended Forecast for

Grahamsville NY

  • This Afternoon

    This Afternoon: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 75. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 61. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 61 °F

    T-storms then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Light northwest wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 75. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 61. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 56. Light northwest wind.
Saturday
Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grahamsville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
2:30 am EDT Aug 27, 2026
Forecast Valid:
12pm EDT Aug 27, 2026-6pm EDT Sep 2, 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