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

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Fair

72°F

22°C

Humidity	99%
Wind Speed	Calm
Barometer	30.03 in
Dewpoint	71°F (22°C)
Visibility	7.00 mi
Last update	29 Jul 3:15 am EDT

More Information:

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

Extended Forecast for

Lansdale PA

Heat Advisory July 29, 03:24am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 29, 03:24am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Overnight
Low: 72 °F
Mostly Clear
Tuesday
High: 97 °F
Hot
Tuesday Night
Low: 73 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 73 °F
Chance
T-storms
Thursday
High: 83 °F
Chance
T-storms then
Showers
Likely
Thursday Night
Low: 65 °F
Showers
Likely
Friday
High: 75 °F
Chance
Showers

Detailed Forecast

Overnight

Mostly clear, with a low around 72. Calm wind.

Tuesday

Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 73. Calm wind.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms, mainly after 8pm. 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 and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

Friday

A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.

Friday Night

Partly cloudy, with a low around 59.

Saturday

Sunny, with a high near 79.

Saturday Night

Mostly clear, with a low around 57.

Sunday

Sunny, with a high near 83.