Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

76°F

24°C

Humidity	64%
Wind Speed	S 7 mph
Barometer	29.93 in (1013.0 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	1 Aug 1:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Mayville NY

This Afternoon
High: 83 °F
Mostly Cloudy
Tonight
Low: 65 °F
Chance
Showers
Sunday
High: 76 °F
Showers
Sunday Night
Low: 62 °F
Showers
Monday
High: 76 °F
Chance
Showers
Monday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 80 °F
Mostly Sunny
Tuesday Night
Low: 63 °F
Partly Cloudy
Wednesday
High: 80 °F
Showers
Likely

Detailed Forecast

This Afternoon

Mostly cloudy, with a high near 83. Southeast wind around 8 mph.

Tonight

A chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 65. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and possibly a thunderstorm. High near 76. South wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 62. Southeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

A chance of showers, mainly before 2pm. Partly sunny, with a high near 76. North wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night

Partly cloudy, with a low around 59. East wind 3 to 5 mph.

Tuesday

Mostly sunny, with a high near 80. Northeast wind around 5 mph.

Tuesday Night

Partly cloudy, with a low around 63. Light and variable wind becoming south around 5 mph after midnight.

Wednesday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Thursday

A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.

Thursday Night

Mostly cloudy, with a low around 63.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.