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.

Mostly Cloudy

70°F

21°C

Humidity	87%
Wind Speed	SW 9 mph
Barometer	30.15 in (1020.8 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	21 Jun 8:56 am EDT

More Information:

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

Extended Forecast for

3 Miles ESE Ashville NY

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

Click here for hazard details and duration

Heat Advisory

Today
High: 84 °F
Partly Sunny
Tonight
Low: 72 °F
Mostly Clear
Sunday
High: 91 °F
Hot
Sunday Night
Low: 72 °F
Clear
Monday
High: 92 °F
Hot
Monday Night
Low: 72 °F
Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 69 °F
Partly Cloudy
Wednesday
High: 86 °F
Chance
T-storms

Detailed Forecast

Today

Partly sunny, with a high near 84. Southwest wind 7 to 11 mph.

Tonight

Mostly clear, with a low around 72. South wind 10 to 13 mph.

Sunday

Sunny and hot, with a high near 91. Heat index values as high as 98. West wind 9 to 11 mph, with gusts as high as 21 mph.

Sunday Night

Clear, with a low around 72. Southwest wind around 6 mph.

Monday

Sunny and hot, with a high near 92. West wind 5 to 9 mph.

Monday Night

Clear, with a low around 72. Southwest wind 3 to 5 mph.

Tuesday

Sunny, with a high near 89. West wind 5 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 69. Light southwest wind.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms after 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms. Patchy fog. Otherwise, partly sunny, with a high near 85. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Friday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.