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

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 30.20 in (1022.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 25 Jul 6:56 am EDT
Extended Forecast for

Arkville NY

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Calm wind.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 82. Light and variable wind. Chance of precipitation is 80%.

    High: 82 °F

    Slight Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 2am, then showers likely. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 100%.

    High: 76 °F

    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    T-storms
    Likely then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 53. Calm wind.
Sunday
Mostly sunny, with a high near 82. Calm wind.
Sunday Night
Partly cloudy, with a low around 58. Calm wind.
Monday
A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 82. Light and variable wind. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms before 2am, then showers likely. Low around 60. Chance of precipitation is 80%.
Tuesday
Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 100%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 56. Chance of precipitation is 80%.
Thursday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Arkville NY
 42.16°N 74.63°W (Elev. 1401 ft)
Last Update:
5:44 am EDT Jul 25, 2026
Forecast Valid:
7am EDT Jul 25, 2026-6pm EDT Jul 31, 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