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

65°F

18°C

Humidity 87%
Wind Speed Calm
Barometer 29.98 in (1014.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 May 4:56 am EDT
Extended Forecast for

North Branch NY

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 80. Northwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Northwest wind around 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 67. North wind around 5 mph.

    High: 67 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Light north wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66. Southeast wind 3 to 5 mph.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely. Cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 80. Northwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, with a low around 48. Northwest wind around 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 67. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 43. Light north wind.
Friday
Partly sunny, with a high near 66. Southeast wind 3 to 5 mph.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Saturday
Showers. High near 54. Chance of precipitation is 80%.
Saturday Night
Showers likely. Cloudy, with a low around 43. Chance of precipitation is 70%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Memorial Day
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
North Branch NY
 41.8°N 75°W (Elev. 1083 ft)
Last Update:
2:30 am EDT May 20, 2026
Forecast Valid:
5am EDT May 20, 2026-6pm EDT May 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