Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

78°F

26°C

Humidity	64%
Wind Speed	SW 5 mph
Barometer	30.13 in (1019.4 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	29 Jun 8:56 pm EDT

More Information:

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

Extended Forecast for

3 Miles E Greenhurst NY

Heat Advisory June 30, 12:00pm until June 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 68 °F
Mostly Clear
Tuesday
High: 89 °F
Mostly Sunny
Tuesday Night
Low: 73 °F
Partly Cloudy
Wednesday
High: 90 °F
Hot
Wednesday Night
Low: 72 °F
Mostly Clear
Thursday
High: 91 °F
Hot
Thursday Night
Low: 71 °F
Mostly Clear
Friday
High: 88 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 69 °F
Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 68. Calm wind becoming south around 5 mph after midnight.

Tuesday

Mostly sunny, with a high near 89. Southwest wind 7 to 11 mph.

Tuesday Night

Partly cloudy, with a low around 73. Southwest wind around 6 mph.

Wednesday

Sunny and hot, with a high near 90. Heat index values as high as 96. West wind 9 to 11 mph.

Wednesday Night

Mostly clear, with a low around 72. Southwest wind around 8 mph.

Thursday

Sunny and hot, with a high near 91. West wind 7 to 11 mph.

Thursday Night

Mostly clear, with a low around 71. Southwest wind around 6 mph.

Friday

A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Light southwest wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.

Independence Day

Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Monday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.