Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

A Few Clouds

79°F

26°C

Humidity 65%
Wind Speed W 9 mph
Barometer 29.89 in (1011.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 11 Aug 4:56 pm EDT
Extended Forecast for

Niagara PA

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms.  Partly sunny, with a high near 81. Northwest wind around 5 mph.  Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog between 2am and 5am.  Otherwise, mostly cloudy, with a low around 56. Light northwest wind.

    Low: 56 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am.  Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 58. Calm wind.  Chance of precipitation is 20%.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 80. Calm wind becoming west 5 to 7 mph in the morning.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Partly sunny, with a high near 81. Northwest wind around 5 mph. Chance of precipitation is 20%.
Tonight
Patchy fog between 2am and 5am. Otherwise, mostly cloudy, with a low around 56. Light northwest wind.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 40%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Niagara PA
 41.73°N 75.34°W (Elev. 1299 ft)
2:30 pm EDT Aug 11, 2026
5pm EDT Aug 11, 2026-6pm EDT Aug 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database