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

Canandaigua Airport (KIUA)

Lat: 42.91°NLon: 77.33°WElev: 814ft.

Fair

60°F

16°C

Humidity 62%
Wind Speed Calm
Barometer 29.73 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 17 Jun 2:55 am EDT
Extended Forecast for

Palmyra NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 58. South wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly before 3pm, then a slight chance of thunderstorms after 4pm. Partly sunny, with a high near 78. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 60. Light south wind becoming southeast 10 to 15 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Breezy, with a south wind 18 to 22 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 57. West wind 11 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. West wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 75 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 54. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72. West wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 58. South wind around 5 mph.
Wednesday
A chance of showers and thunderstorms, mainly before 3pm, then a slight chance of thunderstorms after 4pm. Partly sunny, with a high near 78. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 60. Light south wind becoming southeast 10 to 15 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Breezy, with a south wind 18 to 22 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 57. West wind 11 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Juneteenth
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. West wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 54. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 72. West wind 13 to 16 mph, with gusts as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Palmyra NY
 43.06°N 77.23°W (Elev. 495 ft)
Last Update:
2:22 am EDT Jun 17, 2026
Forecast Valid:
3am EDT Jun 17, 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