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

27°F

-3°C

Humidity 49%
Wind Speed Calm
Barometer 30.30 in (1028.3 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 18 Mar 11:56 am EDT
Extended Forecast for

High Lake PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 35. Calm wind.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Light south wind.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42. South wind 5 to 7 mph.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain before 11pm, then a slight chance of rain and snow between 11pm and 2am, then a slight chance of snow after 2am. Mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain after 2pm. Partly sunny, with a high near 49. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 40%.

    High: 49 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain before 2pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain after 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.

    High: 53 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 35. Calm wind.
Tonight
Mostly cloudy, with a low around 23. Light south wind.
Thursday
Partly sunny, with a high near 42. South wind 5 to 7 mph.
Thursday Night
A slight chance of rain before 11pm, then a slight chance of rain and snow between 11pm and 2am, then a slight chance of snow after 2am. Mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 20%.
Friday
A chance of rain after 2pm. Partly sunny, with a high near 49. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Saturday
A chance of rain before 2pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Saturday Night
A chance of rain after 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Mostly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
High Lake PA
 41.81°N 75.29°W (Elev. 1581 ft)
Last Update:
11:28 am EDT Mar 18, 2026
Forecast Valid:
12pm EDT Mar 18, 2026-6pm EDT Mar 24, 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