Multiple rounds of storms through Thursday

A briefing on the multiple rounds of storms through Thursday, September 3. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from September 3, 11:00 AM EDT until September 3, 08:00 PM EDT

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

75°F

24°C

Humidity	84%
Wind Speed	E 8 mph
Barometer	30.12 in (1019.8 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	2 Sep 10:54 am EDT

More Information:

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

Extended Forecast for

Williamstown NJ

Heat Advisory September 3, 11:00am until September 3, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 80 °F
Mostly Cloudy
Tonight
Low: 69 °F
Chance
T-storms
Thursday
High: 90 °F
Chance
T-storms
Thursday Night
Low: 71 °F
Chance
T-storms
Friday
High: 87 °F
Mostly Sunny
then Chance
Showers
Friday Night
Low: 64 °F
Chance
Showers then
Partly Cloudy
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 60 °F
Mostly Clear
Sunday
High: 77 °F
Sunny

Detailed Forecast

Today

Mostly cloudy, with a high near 80. East wind around 5 mph.

Tonight

A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 69. East wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, mainly after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 90. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming northwest around 5 mph 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.

Friday Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Sunny, with a high near 81.

Saturday Night

Mostly clear, with a low around 60.

Sunday

Sunny, with a high near 77.

Sunday Night

Mostly clear, with a low around 58.

Labor Day

Sunny, with a high near 79.

Monday Night

Partly cloudy, with a low around 61.