National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Partly Cloudy

82°F

28°C

Humidity 47%
Wind Speed Calm
Barometer 29.81 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Jul 4:56 pm EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

Flood Watch July 28, 02:00pm until July 29, 08:00pm
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 68. South wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Chance
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 56. Southeast wind 5 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.

    Low: 56 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain, with thunderstorms also possible after 11am. High near 65. East wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 65 °F

    Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Showers then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 50%.

    High: 71 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 68. South wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 56. Southeast wind 5 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Wednesday
Rain, with thunderstorms also possible after 11am. High near 65. East wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 66. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Low around 53. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 55. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Grant Mills NY
 42.03°N 74.66°W (Elev. 2533 ft)
Last Update:
2:36 pm EDT Jul 27, 2026
Forecast Valid:
5pm EDT Jul 27, 2026-6pm EDT Aug 3, 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