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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

49°F

9°C

Humidity 90%
Wind Speed NE 5 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Aug 3:56 am EDT
Extended Forecast for

3 Miles W Henderson Harbor NY

  • Today

    Today: Sunny, with a high near 73. Northeast wind 11 to 14 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Northeast wind 7 to 10 mph becoming southeast after midnight.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. South wind around 9 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 64. South wind 8 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind 9 to 13 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 59. Northeast wind around 9 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 76. North wind around 11 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Northeast wind 6 to 9 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Northeast wind 11 to 14 mph.
Tonight
Partly cloudy, with a low around 54. Northeast wind 7 to 10 mph becoming southeast after midnight.
Tuesday
Partly sunny, with a high near 78. South wind around 9 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64. South wind 8 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind 9 to 13 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 59. Northeast wind around 9 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 76. North wind around 11 mph.
Thursday Night
Mostly clear, with a low around 58. Northeast wind 6 to 9 mph.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Henderson Harbor NY
 43.86°N 76.21°W (Elev. 302 ft)
Last Update:
1:36 am EDT Aug 18, 2025
Forecast Valid:
4am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
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