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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

50°F

10°C

Humidity 89%
Wind Speed NE 5 mph
Barometer 30.15 in (1020.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 18 Aug 2:56 am EDT
Extended Forecast for

Cape Vincent NY

  • Overnight

    Overnight: Mostly clear, with a low around 51. Northeast wind around 11 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. Northeast wind around 11 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. Northeast wind 5 to 8 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. East wind 6 to 8 mph becoming south in the afternoon.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 62. South wind 6 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind around 10 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: Mostly cloudy, with a low around 58. Northeast wind around 7 mph.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Northeast wind around 10 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 51. Northeast wind around 11 mph.
Monday
Sunny, with a high near 74. Northeast wind around 11 mph.
Monday Night
Partly cloudy, with a low around 52. Northeast wind 5 to 8 mph.
Tuesday
Partly sunny, with a high near 78. East wind 6 to 8 mph becoming south in the afternoon.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. South wind 6 to 9 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 around 10 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
Mostly cloudy, with a low around 58. Northeast wind around 7 mph.
Thursday
Mostly sunny, with a high near 78. Northeast wind around 10 mph.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cape Vincent NY
 44.13°N 76.31°W (Elev. 279 ft)
Last Update:
1:36 am EDT Aug 18, 2025
Forecast Valid:
3am 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