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.

Overcast

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 30.15 in (1019.9 mb)
Dewpoint 69°F (21°C)
Visibility 9.00 mi
Last update 6 Aug 3:56 am EDT
Extended Forecast for

4 Miles NNE Greenfield Park NY

  • Overnight

    Overnight: Isolated showers. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Patchy Fog
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then isolated showers between 11pm and midnight. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
Isolated showers. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Thursday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then isolated showers between 11pm and midnight. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Scattered showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 63.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Greenfield Park NY
 41.76°N 74.47°W (Elev. 1099 ft)
Last Update:
2:36 am EDT Aug 6, 2026
Forecast Valid:
4am EDT Aug 6, 2026-6pm EDT Aug 12, 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