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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Massena, Massena International-Richards Field (KMSS)

Lat: 44.94°NLon: 74.85°WElev: 217ft.

Fair

59°F

15°C

Humidity 69%
Wind Speed Calm
Barometer 29.76 in (1007.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 16 Jun 10:53 pm EDT
Extended Forecast for

Potsdam NY

  • Tonight

    Tonight: Partly cloudy, with a low around 56. South wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 74. South wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 5am. Increasing clouds, with a low around 58. South wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 72. Southeast wind 14 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers before 2am. Mostly cloudy, with a low around 57. Southwest wind 14 to 16 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 70. Breezy, with a southwest wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 53. West wind 10 to 13 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 67. West wind 11 to 13 mph. Chance of precipitation is 90%.

    High: 67 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 52. West wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. South wind around 6 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 74. South wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely, mainly after 5am. Increasing clouds, with a low around 58. South wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers. High near 72. Southeast wind 14 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
A 50 percent chance of showers before 2am. Mostly cloudy, with a low around 57. Southwest wind 14 to 16 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
Juneteenth
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 70. Breezy, with a southwest wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 53. West wind 10 to 13 mph. Chance of precipitation is 60%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 67. West wind 11 to 13 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 52. West wind 6 to 8 mph. Chance of precipitation is 80%.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 70. West wind 8 to 10 mph.
Sunday Night
Partly cloudy, with a low around 53. Light south wind.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 73. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 55. Calm wind.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 74. Calm wind becoming northwest 5 to 7 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potsdam NY
 44.66°N 74.96°W (Elev. 449 ft)
Last Update:
2:20 pm EDT Jun 16, 2026
Forecast Valid:
11pm EDT Jun 16, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation