Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Fair

79°F

26°C

Humidity	58%
Wind Speed	SE 5 mph
Barometer	30.02 in (1016.5 mb)
Dewpoint	63°F (17°C)
Visibility	8.00 mi
Heat Index	81°F (27°C)
Last update	15 Jul 8:54 pm EDT

More Information:

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

Extended Forecast for

4 Miles WNW Union Hill NY

Heat Advisory July 16, 11:00am until July 16, 08:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 72 °F
Clear
Wednesday
High: 91 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 75 °F
Chance
T-storms
Thursday
High: 90 °F
Showers
Likely
Thursday Night
Low: 65 °F
Showers
Likely then
Chance
Showers
Friday
High: 77 °F
Mostly Sunny
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 84 °F
Mostly Sunny
Saturday Night
Low: 69 °F
Chance
Showers

Detailed Forecast

Tonight

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

Wednesday

A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 91. Heat index values as high as 95. Southwest wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. South wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Heat index values as high as 96. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. West wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Mostly sunny, with a high near 77. North wind 5 to 9 mph.

Friday Night

Mostly clear, with a low around 63. Light and variable wind.

Saturday

Mostly sunny, with a high near 84. South wind around 6 mph becoming north in the afternoon.

Saturday Night

A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

Sunday

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

Sunday Night

Partly cloudy, with a low around 68.