Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Genesee County Airport (KGVQ)

Lat: 43.03°NLon: 78.17°WElev: 914ft.

Mostly Cloudy

77°F

25°C

Humidity 62%
Wind Speed W 15 mph
Barometer 29.90 in (1012.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 4:56 pm EDT
Extended Forecast for

Lyndonville NY

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West wind 5 to 10 mph becoming light northwest  in the evening.

    Low: 59 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 74. North wind 5 to 7 mph.

    High: 74 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. West wind 6 to 8 mph.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 65. South wind 3 to 6 mph.  Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 81. West wind 6 to 9 mph.  Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 59. West wind 5 to 10 mph becoming light northwest in the evening.
Friday
Partly sunny, then gradually becoming sunny, with a high near 74. North wind 5 to 7 mph.
Friday Night
Mostly clear, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 61. South wind around 5 mph.
Sunday
Partly sunny, with a high near 82. West wind 6 to 8 mph.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. West wind 6 to 9 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Tuesday
A chance of showers after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Lyndonville NY
 43.32°N 78.38°W (Elev. 308 ft)
3:57 pm EDT Aug 27, 2026
7pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database