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.

Fog/Mist

45°F

7°C

Humidity 100%
Wind Speed W 5 mph
Barometer 29.73 in (1007.2 mb)
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill42°F (6°C)
Last update 21 Mar 1:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 29. Northwest wind around 6 mph.

    Low: 29 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 42. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of snow after 2am. Increasing clouds, with a low around 31. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of rain and snow before 8am, then rain likely. Mostly cloudy, with a high near 52. South wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 52 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain likely before 2am, then a chance of showers after 2am. Cloudy, with a low around 29. North wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 29 °F

    Rain Likely

  • Monday

    Monday: A chance of rain and snow showers before 2pm. Mostly cloudy, with a high near 37. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 37 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.

    Low: 23 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 29. Northwest wind around 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 42. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of snow after 2am. Increasing clouds, with a low around 31. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 20%.
Sunday
A chance of rain and snow before 8am, then rain likely. Mostly cloudy, with a high near 52. South wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Rain likely before 2am, then a chance of showers after 2am. Cloudy, with a low around 29. North wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of rain and snow showers before 2pm. Mostly cloudy, with a high near 37. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
A chance of snow after 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Wednesday
A chance of snow before 2pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 25. Chance of precipitation is 70%.
Friday
A chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.
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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:
9:01 pm EDT Mar 20, 2026
Forecast Valid:
2am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation