Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

A Few Clouds

87°F

31°C

Humidity	65%
Wind Speed	NW 10 mph
Barometer	30.01 in (1015.3 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	30 Jun 5:56 pm EDT

More Information:

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

Extended Forecast for

Sinclairville NY

Heat Advisory July 1, 12:00pm until July 3, 08:00pm

Heat Advisory June 30, 06:10pm until June 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

...

Heat Advisory June 30, 06:10pm until June 30, 08:00pm
NOW until 8:00pm Tue
Heat Advisory
Tonight
Low: 73 °F
Mostly Clear
then Patchy
Fog
Wednesday
High: 91 °F
Patchy Fog
then Sunny
Wednesday Night
Low: 73 °F
Mostly Clear
Thursday
High: 94 °F
Hot
Thursday Night
Low: 72 °F
Mostly Clear
Friday
High: 90 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 68 °F
Chance
T-storms
Independence Day
High: 83 °F
Showers
Likely

Detailed Forecast

Tonight

Patchy fog after 2am. Otherwise, partly cloudy, with a low around 73. Southwest wind 6 to 9 mph.

Wednesday

Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Heat index values as high as 98. West wind 8 to 13 mph.

Wednesday Night

Mostly clear, with a low around 73. Southwest wind 5 to 7 mph.

Thursday

Sunny and hot, with a high near 94. Heat index values as high as 101. West wind 7 to 11 mph.

Thursday Night

Mostly clear, with a low around 72. Southwest wind around 6 mph.

Friday

A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 90. West wind 5 to 10 mph. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 68. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.

Independence Day

Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. West wind 5 to 8 mph. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Sunday

A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

Sunday Night

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

Monday

A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.

Monday Night

Partly cloudy, with a low around 64.

Tuesday

Mostly sunny, with a high near 81.