Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Overcast

77°F

25°C

Humidity	73%
Wind Speed	S 8 mph
Barometer	29.96 in
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	2 Aug 12:55 am EDT

More Information:

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

Extended Forecast for

Lafayette Hill PA

Overnight
Low: 71 °F
Mostly Cloudy
Sunday
High: 87 °F
Mostly Cloudy
then Chance
Showers
Sunday Night
Low: 72 °F
Showers
Monday
High: 85 °F
Showers
Likely then
Showers
Monday Night
Low: 70 °F
Showers then
Chance
Showers
Tuesday
High: 85 °F
Partly Sunny
then Showers
Likely
Tuesday Night
Low: 69 °F
Showers
Likely then
Chance
Showers
Wednesday
High: 87 °F
Partly Sunny
then Showers
Likely
Wednesday Night
Low: 71 °F
Showers
Likely

Detailed Forecast

Overnight

Mostly cloudy, with a low around 71. South wind around 5 mph.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. South wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 72. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers and possibly a thunderstorm. High near 85. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

Wednesday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Thursday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Friday

A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

Saturday

A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.