Widespread Damaging Winds Likely in the Northern Plains; Heat Continues in the Central and Southeast U.S.

Severe thunderstorms, heavy rainfall, and flooding are possible from the northern Rockies into the Upper Midwest. A derecho is likely across portions of the northern Plains, with several gusts expected to exceed 75 mph. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

73°F

23°C

Humidity	96%
Wind Speed	Calm
Barometer	30.00 in (1015.0 mb)
Dewpoint	72°F (22°C)
Visibility	9.00 mi
Last update	29 Jul 4:53 am EDT

More Information:

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

Extended Forecast for

Rocky Hill NJ

Heat Advisory July 29, 05:09am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 29, 05:09am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 98 °F
Hot
Tonight
Low: 74 °F
Mostly Clear
Wednesday
High: 98 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 73 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 85 °F
Chance
Showers then
Heavy Rain
Thursday Night
Low: 66 °F
Heavy Rain
Friday
High: 74 °F
Showers
Likely
Friday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Today

Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west around 5 mph in the afternoon.

Tonight

Mostly clear, with a low around 74. Calm wind.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. 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 before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 85. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Friday

Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

Friday Night

Partly cloudy, with a low around 60.

Saturday

Sunny, with a high near 80.

Saturday Night

Mostly clear, with a low around 57.

Sunday

Sunny, with a high near 83.

Sunday Night

Mostly clear, with a low around 59.