Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

Hazardous Weather Conditions

Current conditions at

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Partly Cloudy

73°F

23°C

Humidity	90%
Wind Speed	SW 7 mph
Barometer	29.97 in (1014.7 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	2 Jul 2:54 am EDT

More Information:

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

Extended Forecast for

2 Miles SSE Clarkson NY

Extreme Heat Warning July 2, 03:42am until July 3, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 03:42am until July 3, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Overnight
Low: 74 °F
Mostly Clear
Thursday
High: 94 °F
Hot
Thursday Night
Low: 75 °F
Chance
T-storms
Friday
High: 93 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 71 °F
Showers
Likely
Independence Day
High: 87 °F
Chance
Showers then
Showers
Likely
Saturday Night
Low: 66 °F
Showers
Likely then
Mostly Cloudy
Sunday
High: 84 °F
Partly Sunny
then Chance
T-storms

Detailed Forecast

Overnight

Mostly clear, with a low around 74. Southwest wind around 8 mph.

Thursday

Sunny and hot, with a high near 94. Heat index values as high as 105. West wind 9 to 18 mph, with gusts as high as 29 mph.

Thursday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 75. West wind 8 to 11 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 93. Heat index values as high as 102. West wind 9 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 71. West wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Independence Day

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers likely before 8pm. Mostly cloudy, with a low around 66. Northwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 60%.

Sunday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. East wind 5 to 8 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

Monday

A chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.

Monday Night

Mostly cloudy, with a low around 66.

Tuesday

Mostly sunny, with a high near 85.

Tuesday Night

Partly cloudy, with a low around 67.