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

71°F

22°C

Humidity 94%
Wind Speed S 6 mph
Barometer 30.20 in (1022.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Sep 1:56 pm EDT
Extended Forecast for

3 Miles NW Downsville NY

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 75. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 58. Light northwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. North wind 5 to 8 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 2am. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers. High near 63. Chance of precipitation is 100%.

    High: 63 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 75. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 58. Light northwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 71. North wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 68. Calm wind.
Saturday Night
Showers, mainly after 2am. Low around 50. Chance of precipitation is 90%.
Sunday
Showers. High near 63. Chance of precipitation is 100%.
Sunday Night
Showers likely before 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Downsville NY
 42.11°N 75.03°W (Elev. 1499 ft)
Last Update:
2:30 am EDT Sep 17, 2026
Forecast Valid:
2pm EDT Sep 17, 2026-6pm EDT Sep 23, 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