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

Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

Hazardous Weather Conditions

Current conditions at

Genesee County Airport (KGVQ)

Lat: 43.03°NLon: 78.17°WElev: 914ft.

Overcast

77°F

25°C

Humidity 77%
Wind Speed S 5 mph
Barometer 29.73 in (1006.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 2 Aug 3:56 pm EDT
Extended Forecast for

4 Miles SSW Knowlesville NY

Flood Watch August 2, 04:06pm until August 3, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 2, 04:06pm until August 3, 02:00am

    NOW until 2:00am Mon

    Flood Watch

  • This Afternoon

    High: 77 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a chance of showers. Low around 61. South wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 76. Northwest wind 9 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 55. Southwest wind 3 to 5 mph.

    Low: 55 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Southwest wind around 5 mph becoming light and variable.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. East wind around 5 mph becoming south after midnight.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Southwest wind around 6 mph.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 64. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 77. South wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 2am, then a chance of showers. Low around 61. South wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 76. Northwest wind 9 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Clear, with a low around 55. Southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 80. Southwest wind around 5 mph becoming light and variable.
Tuesday Night
Mostly clear, with a low around 60. East wind around 5 mph becoming south after midnight.
Wednesday
Mostly sunny, with a high near 83. Southwest wind around 6 mph.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 64. South wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Knowlesville NY
 43.17°N 78.4°W (Elev. 650 ft)
Last Update:
3:57 pm EDT Aug 2, 2026
Forecast Valid:
4pm EDT Aug 2, 2026-6pm EDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation