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

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fog

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.27 in (1024.7 mb)
Dewpoint 67°F (19°C)
Visibility 0.50 mi
Last update 17 Sep 7:56 am EDT
Extended Forecast for

Mayville NY

  • Today

    Today: A chance of showers, mainly before 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 70. North wind 5 to 8 mph.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. East wind 3 to 6 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly cloudy, with a high near 69. Southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 11pm. Low around 56. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 68. West wind 7 to 11 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 8 to 11 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers, mainly before 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight.
Friday
Sunny, with a high near 70. North wind 5 to 8 mph.
Friday Night
Mostly cloudy, with a low around 50. East wind 3 to 6 mph.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 69. Southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers, with thunderstorms also possible after 11pm. Low around 56. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 68. West wind 7 to 11 mph becoming north in the afternoon. Chance of precipitation is 70%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 8 to 11 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 66.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.26°N 79.5°W (Elev. 1398 ft)
Last Update:
7:57 am EDT Sep 17, 2026
Forecast Valid:
8am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation