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

63°F

17°C

Humidity 100%
Wind Speed E 12 mph
Barometer 30.15 in (1020.4 mb)
Dewpoint 63°F (17°C)
Visibility 1.75 mi
Last update 6 Jul 12:56 pm EDT
Extended Forecast for

Thompsonville NY

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 68. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 5am, then showers likely. Low around 55. East wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 70. Northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. Light north wind.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 68. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm before 5am, then showers likely. Low around 55. East wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 70. Northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 56. Light north wind.
Wednesday
Sunny, with a high near 80. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thompsonville NY
 41.67°N 74.61°W (Elev. 1247 ft)
Last Update:
1:20 pm EDT Jul 6, 2026
Forecast Valid:
1pm EDT Jul 6, 2026-6pm EDT Jul 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