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.

Mostly Cloudy

40°F

4°C

Humidity 51%
Wind Speed NA
Barometer 29.77 in (1008.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 13 Mar 9:53 pm EDT
Extended Forecast for

Mongaup NY

  • Tonight

    Tonight: Rain and snow showers likely before 1am, then a slight chance of rain showers between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Wind chill values between 25 and 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.

    High: 43 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 26. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 26 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 34. Southeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Slight Chance
    Rain then
    Rain

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. High near 61. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Rain

  • Monday Night

    Monday Night: Rain before 2am, then a chance of rain and snow. Low around 27. Chance of precipitation is 90%.

    Low: 27 °F

    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 8am. Partly sunny, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and snow showers likely before 1am, then a slight chance of rain showers between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 43. Wind chill values between 25 and 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.
Saturday Night
Increasing clouds, with a low around 26. Northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Rain, mainly after 2am. Low around 34. Southeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain, with thunderstorms also possible after 2pm. High near 61. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain before 2am, then a chance of rain and snow. Low around 27. Chance of precipitation is 90%.
Tuesday
A chance of rain and snow before 8am. Partly sunny, with a high near 35. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup NY
 41.42°N 74.75°W (Elev. 794 ft)
Last Update:
9:14 pm EDT Mar 13, 2026
Forecast Valid:
10pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation