National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.21°N 78.6°W (Text-Only)
NWS Forecast for: Great Valley NY
Issued by: National Weather Service Buffalo, NY
Last Update: 10:36 am EDT Jul 13, 2025		Print

  • This
    Afternoon

    This Afternoon: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 28. Southwest wind around 11 km/h. Chance of precipitation is 80%. New rainfall amounts between 5 and 7.5 mm possible.

    High: 28 °C

    T-storms



  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Low: 18 °C

    T-storms
    Likely then
    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 27. Calm wind. Chance of precipitation is 30%.

    High: 27 °C

    Partly Sunny
    then Chance
    T-storms

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 16. Calm wind. Chance of precipitation is 30%.

    Low: 16 °C

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 30. Calm wind.

    High: 30 °C

    Sunny



  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 19. Calm wind.

    Low: 19 °C

    Partly Cloudy



  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 29. Southwest wind 3 to 8 km/h. Chance of precipitation is 50%.

    High: 29 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 40%.

    Low: 19 °C

    Chance
    T-storms


  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.

    High: 27 °C

    Showers
    Likely




    • This Afternoon: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 28. Southwest wind around 11 km/h. Chance of precipitation is 80%. New rainfall amounts between 5 and 7.5 mm possible.

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 27. Calm wind. Chance of precipitation is 30%.

    Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 16. Calm wind. Chance of precipitation is 30%.

    Tuesday: Sunny, with a high near 30. Calm wind.

    Tuesday Night: Partly cloudy, with a low around 19. Calm wind.

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 29. Southwest wind 3 to 8 km/h. Chance of precipitation is 50%.

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 40%.

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 26. Chance of precipitation is 40%.

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 15. Chance of precipitation is 30%.

    Saturday: Mostly sunny, with a high near 26.


    Great Valley NY
     42.21°N 78.6°W (Elev. 1558 m)

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