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

79°F

26°C

Humidity	67%
Wind Speed	S 10 mph
Barometer	30.11 in (1019.1 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	21 Jun 3:56 pm EDT

More Information:

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

Extended Forecast for

5 Miles E Clymer NY

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

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 71 °F
Mostly Clear
Sunday
High: 89 °F
Mostly Sunny
Sunday Night
Low: 72 °F
Mostly Clear
Monday
High: 91 °F
Hot
Monday Night
Low: 72 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 85 °F
Chance
T-storms
Wednesday Night
Low: 67 °F
Partly Cloudy
then Chance
Showers

Detailed Forecast

Tonight

Mostly clear, with a low around 71. South wind 10 to 14 mph, with gusts as high as 24 mph.

Sunday

Mostly sunny, with a high near 89. Heat index values as high as 97. West wind 11 to 13 mph, with gusts as high as 23 mph.

Sunday Night

Mostly clear, with a low around 72. Southwest wind around 7 mph.

Monday

Sunny and hot, with a high near 91. Heat index values as high as 98. West wind 6 to 9 mph.

Monday Night

Mostly clear, with a low around 72. Southwest wind around 5 mph.

Tuesday

Sunny, with a high near 89. West wind 6 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening.

Wednesday

A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 85. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 50%.

Wednesday Night

A chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.

Thursday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

Friday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.