Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Air Quality Alert

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Partly Cloudy

87°F

31°C

Humidity	53%
Wind Speed	S 5 mph
Barometer	30.05 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	12 Aug 2:15 pm EDT

More Information:

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

Extended Forecast for

2 Miles NW Gwynedd Valley PA

This Afternoon
High: 90 °F
Sunny
Tonight
Low: 71 °F
Mostly Clear
then Patchy
Fog
Wednesday
High: 90 °F
Slight Chance
Showers and
Patchy Fog
then Showers
Likely
Wednesday Night
Low: 71 °F
Showers
Likely
Thursday
High: 89 °F
Chance
T-storms
Thursday Night
Low: 68 °F
Chance
T-storms then
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Saturday
High: 92 °F
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 90. Southwest wind around 5 mph.

Tonight

Patchy fog after 2am. Otherwise, partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.

Wednesday

A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon. 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 before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Sunny, with a high near 89.

Friday Night

Mostly clear, with a low around 66.

Saturday

Sunny, with a high near 92.

Saturday Night

Mostly clear, with a low around 69.

Sunday

Sunny, with a high near 94.

Sunday Night

Partly cloudy, with a low around 69.