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

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in (1014.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Aug 3:56 am EDT
Extended Forecast for

4 Miles ENE Downsville NY

  • Today

    Today: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A slight chance of showers before 10pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Thursday

    Thursday: A chance of showers between 2pm and 3pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 74. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Areas Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 50. Calm wind.

    Low: 50 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 78. Calm wind.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Tonight
A slight chance of showers before 10pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 20%.
Thursday
A chance of showers between 2pm and 3pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 74. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 50. Calm wind.
Friday
Sunny, with a high near 78. Calm wind.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Downsville NY
 42.1°N 74.91°W (Elev. 1755 ft)
Last Update:
2:30 am EDT Aug 19, 2026
Forecast Valid:
4am EDT Aug 19, 2026-6pm EDT Aug 25, 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