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.

Light Rain

63°F

17°C

Humidity 100%
Wind Speed SE 8 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 16 Aug 9:56 pm EDT
Extended Forecast for

Acidalia NY

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Patchy fog after 1am. Otherwise, cloudy, with a low around 60. South wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Areas Fog
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 60. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Northwest wind 3 to 6 mph.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 8am. Mostly sunny, with a high near 75. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Patchy fog after 1am. Otherwise, cloudy, with a low around 60. South wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 60. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Northwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
A chance of showers before 8am. Mostly sunny, with a high near 75. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Acidalia NY
 41.89°N 75.04°W (Elev. 1585 ft)
Last Update:
6:56 pm EDT Aug 16, 2026
Forecast Valid:
10pm EDT Aug 16, 2026-6pm EDT Aug 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