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

48°F

9°C

Humidity 83%
Wind Speed NE 5 mph
Barometer 30.41 in (1029.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 11 Oct 3:56 am EDT
Extended Forecast for

Niagara PA

  • Today

    Today: Showers, mainly after 8am. High near 57. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers
    Likely then
    Showers

  • Tonight

    Tonight: Showers, mainly before 1am. Low around 50. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers then
    Chance
    Showers

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 67. North wind 6 to 8 mph.

    High: 67 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 71. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 71 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly after 8am. High near 57. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Showers, mainly before 1am. Low around 50. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Columbus Day
Partly sunny, with a high near 67. North wind 6 to 8 mph.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 71. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Friday
Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niagara PA
 41.73°N 75.34°W (Elev. 1299 ft)
Last Update:
2:30 am EDT Oct 11, 2026
Forecast Valid:
4am EDT Oct 11, 2026-6pm EDT Oct 17, 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