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 >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

75°F

24°C

Humidity 84%
Wind Speed N 7 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 10 Jul 12:56 pm EDT
Extended Forecast for

Mayville NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 79. North wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Light east wind becoming north 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Northeast wind 3 to 5 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. South wind around 6 mph becoming west in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. South wind 3 to 6 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 79. North wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 79. Light east wind becoming north 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 60. Northeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 82. Northeast wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 62. Light and variable wind.
Monday
Sunny, with a high near 84. South wind around 6 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 67. South wind 3 to 6 mph.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 84.
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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:
9:57 am EDT Jul 10, 2026
Forecast Valid:
1pm EDT Jul 10, 2026-6pm EDT Jul 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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