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

Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

A Few Clouds

76°F

24°C

Humidity 72%
Wind Speed NW 9 mph
Barometer 29.94 in (1013.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 10 Jul 6:56 pm EDT
Extended Forecast for

Mayville NY

  • Tonight

    Tonight: Increasing clouds, with a low around 63. North wind around 6 mph becoming calm in the evening.

    Low: 63 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 80. Light northeast wind becoming north 5 to 10 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Northeast wind around 6 mph becoming light and variable after midnight.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Northeast wind around 6 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Northeast wind around 5 mph becoming light and variable in the evening.

    Low: 63 °F

    Mostly Clear

  • Monday

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

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Calm wind becoming southwest around 5 mph in the evening.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. West wind 7 to 11 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 63. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 80. Light northeast wind becoming north 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 60. Northeast wind around 6 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 82. Northeast wind around 6 mph.
Sunday Night
Mostly clear, with a low around 63. Northeast wind around 5 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 85. South wind around 5 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 68. Calm wind becoming southwest around 5 mph in the evening.
Tuesday
Sunny, with a high near 86. West wind 7 to 11 mph.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.26°N 79.5°W (Elev. 1398 ft)
Last Update:
3:57 pm EDT Jul 10, 2026
Forecast Valid:
7pm EDT Jul 10, 2026-6pm EDT Jul 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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Chance of Precipitation