Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Mostly Cloudy

72°F

22°C

Humidity 76%
Wind Speed NW 12 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 10 Sep 4:56 pm EDT
Extended Forecast for

Mayville NY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West wind 5 to 9 mph becoming calm  after midnight.

    Low: 54 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 55. Calm wind becoming southeast around 6 mph after midnight.

    Low: 55 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm.  Partly sunny, with a high near 78. South wind around 8 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. South wind 6 to 8 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 76. West wind 7 to 10 mph.  Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 55. West wind around 7 mph becoming north in the evening.  Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 70. North wind around 7 mph.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. West wind 5 to 9 mph becoming calm after midnight.
Friday
Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 55. Calm wind becoming southeast around 6 mph after midnight.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 78. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. West wind 7 to 10 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 55. West wind around 7 mph becoming north in the evening. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 70. North wind around 7 mph.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.24°N 79.51°W (Elev. 1365 ft)
3:57 pm EDT Sep 10, 2026
5pm EDT Sep 10, 2026-6pm EDT Sep 17, 2026
 
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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