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

23°F

-5°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1019.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 20 Mar 6:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • Today

    Today: Rain, mainly after 3pm. High near 47. Light southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Mostly Cloudy
    then Rain

  • Tonight

    Tonight: Rain likely, mainly before 8pm. Mostly cloudy, with a low around 27. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 27 °F

    Rain Likely
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind around 11 mph, with gusts as high as 22 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of snow after 2am. Increasing clouds, with a low around 28. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow before 11am, then rain likely. Mostly cloudy, with a high near 49. South wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 29 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Snow likely, mainly before 8am. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

    High: 36 °F

    Snow Likely
    then Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Today
Rain, mainly after 3pm. High near 47. Light southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 27. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind around 11 mph, with gusts as high as 22 mph.
Saturday Night
A chance of snow after 2am. Increasing clouds, with a low around 28. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow before 11am, then rain likely. Mostly cloudy, with a high near 49. South wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Snow likely, mainly before 8am. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly cloudy, with a high near 35.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Grant Mills NY
 42.03°N 74.66°W (Elev. 2533 ft)
Last Update:
2:36 am EDT Mar 20, 2026
Forecast Valid:
7am EDT Mar 20, 2026-6pm EDT Mar 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