Briefing for Flash Flood, Severe Thunderstorm, and Heat Risks through Thursday

Scattered showers and thunderstorms with locally heavy rainfall may lead to areas of flash flooding through tonight. There is potential for isolated severe thunderstorms with damaging wind gusts tonight and Thursday. Hot and very humid conditions are expected Thursday. See this briefing for details on these threats. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from July 17, 10:00 AM EDT until July 17, 08:00 PM EDT

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

83°F

28°C

Humidity	79%
Wind Speed	S 7 mph
Barometer	30.04 in (1017.0 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	16 Jul 9:54 am EDT

More Information:

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

Extended Forecast for

Philadelphia PA

Heat Advisory July 17, 10:00am until July 17, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 91 °F
Mostly Sunny
then Chance
T-storms
Tonight
Low: 75 °F
Showers
Likely then
Chance
Showers
Thursday
High: 92 °F
Chance
Showers then
Chance
T-storms
Thursday Night
Low: 76 °F
Chance
T-storms
Friday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 69 °F
Partly Cloudy
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 72 °F
Chance
Showers
Sunday
High: 86 °F
Showers
Likely

Detailed Forecast

Today

A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 3am. Mostly cloudy, with a low around 75. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 92. Heat index values as high as 103. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. 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, mainly before 8pm. Partly cloudy, with a low around 76. Southwest wind around 5 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 slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Northwest wind around 5 mph. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 69.

Saturday

Mostly sunny, with a high near 87.

Saturday Night

A chance of showers after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

Sunday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.

Sunday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Monday

Mostly sunny, with a high near 85.

Monday Night

Mostly cloudy, with a low around 68.

Tuesday

A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.