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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.98°N 78.89°W (Text-Only)
NWS Forecast for: Tonawanda NY
Issued by: National Weather Service Buffalo, NY
Last Update: 9:57 am EDT Jun 30, 2026		Print

  • Today

    Today: A slight chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 96. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms


  • Tonight

    Tonight: Partly cloudy, with a low around 75. Southwest wind 8 to 10 mph.

    Low: 75 °F

    Partly Cloudy



  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind 10 to 15 mph.

    High: 90 °F

    Hot



  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 74. Southwest wind 6 to 10 mph.

    Low: 74 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny and hot, with a high near 93. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 93 °F

    Hot



  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Southwest wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    Showers


  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind 3 to 7 mph. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms


  • Independence
    Day

    Independence Day: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms



    • Today: A slight chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 96. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Tonight: Partly cloudy, with a low around 75. Southwest wind 8 to 10 mph.

    Wednesday: Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind 10 to 15 mph.

    Wednesday Night: Mostly clear, with a low around 74. Southwest wind 6 to 10 mph.

    Thursday: Sunny and hot, with a high near 93. Southwest wind 8 to 14 mph, with gusts as high as 24 mph.

    Thursday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Southwest wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind 3 to 7 mph. Chance of precipitation is 50%.

    Independence Day: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    Saturday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

    Sunday: Mostly sunny, with a high near 84.

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Monday: A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.


    Tonawanda NY
     42.98°N 78.89°W (Elev. 630 ft)

    Visit your local NWS office at: https://www.weather.gov/buf