Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

74°F

23°C

Humidity	79%
Wind Speed	SW 8 mph
Barometer	30.13 in (1019.8 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	21 Jun 9:56 am EDT

More Information:

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

Extended Forecast for

Mayville NY

Heat Advisory June 22, 12:00pm until June 24, 06:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 85 °F
Partly Sunny
then Slight
Chance
T-storms
Tonight
Low: 73 °F
Mostly Clear
Sunday
High: 88 °F
Sunny
Sunday Night
Low: 73 °F
Clear
Monday
High: 89 °F
Sunny
Monday Night
Low: 72 °F
Clear
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 84 °F
Chance
T-storms

Detailed Forecast

Today

A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Southwest wind 9 to 11 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 73. South wind 11 to 15 mph, with gusts as high as 25 mph.

Sunday

Sunny, with a high near 88. West wind 11 to 15 mph.

Sunday Night

Clear, with a low around 73. Southwest wind around 7 mph.

Monday

Sunny, with a high near 89. West wind 7 to 10 mph, with gusts as high as 20 mph.

Monday Night

Clear, with a low around 72. Southwest wind around 7 mph.

Tuesday

Sunny, with a high near 86. West wind 7 to 10 mph.