Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

A Few Clouds

67°F

19°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.07 in (1017.7 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 14 Jul 6:56 am EDT
Extended Forecast for

Mayville NY

  • Today

    Today: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 3pm.  Cloudy, then gradual clearing during the afternoon, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the morning.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 64. Light and variable wind.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 85. Southwest wind around 6 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. South wind 3 to 7 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 83. West wind 10 to 13 mph.  Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 67. West wind around 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 3pm. Cloudy, then gradual clearing during the afternoon, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 64. Light and variable wind.
Tuesday
Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 68. Light and variable wind.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Southwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. West wind 10 to 13 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Friday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.26°N 79.5°W (Elev. 1398 ft)
7:36 am EDT Jul 14, 2025
7am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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