Dangerous Heat and Humidity Wednesday through Saturday

Dangerously hot and humid conditions are expected to build starting Wednesday through Saturday. Additionally, there will be a threat of thunderstorms on some of the days. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Partly Cloudy

87°F

31°C

Humidity	43%
Wind Speed	SW 8 G 18 mph
Barometer	30.10 in
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	30 Jun 2:15 pm EDT

More Information:

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

Extended Forecast for

Horsham PA

Extreme Heat Warning July 1, 12:00pm until July 4, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

This Afternoon
High: 91 °F
Mostly Sunny
Tonight
Low: 71 °F
Mostly Cloudy
then Slight
Chance
Showers
Wednesday
High: 97 °F
Mostly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 76 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday
High: 102 °F
Hot
Thursday Night
Low: 81 °F
Mostly Clear
Friday
High: 102 °F
Hot
Friday Night
Low: 78 °F
Partly Cloudy
Independence Day
High: 99 °F
Sunny then
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 91. Southwest wind around 15 mph.

Tonight

A slight chance of showers after 1am. Partly cloudy, with a low around 71. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 3am. Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Thursday

Sunny and hot, with a high near 102. West wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 81.

Friday

Sunny and hot, with a high near 102.

Friday Night

Partly cloudy, with a low around 78.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.