Air Quality Concerns; Fire Weather in the West; Flash Flooding in the Southeast

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Severe thunderstorms continue across the Northern Plains Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

A Few Clouds

79°F

26°C

Humidity 39%
Wind Speed Calm
Barometer 30.31 in (1025.9 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 5 Aug 4:56 pm EDT
Extended Forecast for

Mayville NY

  • This Afternoon

    This Afternoon: A slight chance of showers.  Widespread haze. Partly sunny, with a high near 82. Light east wind.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Widespread haze. Partly cloudy, with a low around 61. Northeast wind around 5 mph becoming light and variable  in the evening.

    Low: 61 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze. Mostly sunny, with a high near 82. Southeast wind around 7 mph.

    High: 82 °F

    Haze

  • Wednesday Night

    Wednesday Night: Widespread haze before midnight. Partly cloudy, with a low around 60. South wind around 6 mph.

    Low: 60 °F

    Haze then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. South wind around 7 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. South wind 5 to 7 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. South wind 6 to 8 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. South wind 3 to 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Widespread haze. Partly sunny, with a high near 82. Light east wind. Chance of precipitation is 20%.
Tonight
Widespread haze. Partly cloudy, with a low around 61. Northeast wind around 5 mph becoming light and variable in the evening.
Wednesday
Widespread haze. Mostly sunny, with a high near 82. Southeast wind around 7 mph.
Wednesday Night
Widespread haze before midnight. Partly cloudy, with a low around 60. South wind around 6 mph.
Thursday
Sunny, with a high near 81. South wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 61. South wind 5 to 7 mph.
Friday
Sunny, with a high near 82. South wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 63. South wind 3 to 7 mph.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Mayville NY
 42.26°N 79.5°W (Elev. 1398 ft)
4:36 pm EDT Aug 5, 2025
5pm EDT Aug 5, 2025-6pm EDT Aug 12, 2025
 
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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