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

Sussex, Sussex Airport (KFWN)

Lat: 41.2°NLon: 74.63°WElev: 410ft.

Overcast

66°F

19°C

Humidity 90%
Wind Speed Calm
Barometer 29.86 in (1011.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 5 Nov 6:53 pm EST
Extended Forecast for

Mongaup NY

  • Tonight

    Tonight: A chance of showers before 1am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 1pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Showers and
    Areas Fog

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 1pm. Partly sunny, with a high near 61. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 41. Northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers before 1am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of showers before 1pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 44. Calm wind.
Saturday
Showers likely, mainly after 1pm. Partly sunny, with a high near 61. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 41. Northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 35.
Veterans Day
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup NY
 41.42°N 74.75°W (Elev. 794 ft)
Last Update:
5:57 pm EST Nov 5, 2026
Forecast Valid:
6pm EST Nov 5, 2026-6pm EST Nov 12, 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