Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Partly Cloudy

62°F

17°C

Humidity 75%
Wind Speed Calm
Barometer 30.09 in (1019.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Jun 8:56 pm EDT
Extended Forecast for

Mayville NY

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind around 5 mph becoming calm  after midnight.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am.  Partly cloudy, with a low around 57. Calm wind becoming southeast around 5 mph after midnight.  Chance of precipitation is 30%.

    Low: 57 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 76. South wind 7 to 9 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Low around 59. South wind around 6 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 8am.  Partly sunny, with a high near 76. Southwest wind around 6 mph.  Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 58. Calm wind.  Chance of precipitation is 40%.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am.  Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon.  Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. West wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 74. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 57. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 30%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. South wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 59. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers after 8am. Partly sunny, with a high near 76. Southwest wind around 6 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 40%.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 84.
Monday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.24°N 79.51°W (Elev. 1365 ft)
7:57 pm EDT Jun 23, 2026
8pm EDT Jun 23, 2026-6pm EDT Jun 30, 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