Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 27, 12:00 PM EDT until August 28, 04:00 AM EDT

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Overcast

71°F

22°C

Humidity	86%
Wind Speed	S 6 mph
Barometer	30.03 in
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	27 Aug 5:55 am EDT

More Information:

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

Extended Forecast for

2 Miles ENE Norristown PA

Flood Watch August 27, 12:00pm until August 28, 04:00am

Click here for hazard details and duration

Flood Watch

Today
High: 85 °F
Showers
Tonight
Low: 68 °F
Showers
Likely and
Patchy Fog
Friday
High: 85 °F
Patchy Fog
then Chance
Showers
Friday Night
Low: 66 °F
Chance
Showers then
Partly Cloudy
Saturday
High: 85 °F
Mostly Sunny
Saturday Night
Low: 66 °F
Mostly Clear
Sunday
High: 87 °F
Mostly Sunny
Sunday Night
Low: 70 °F
Partly Cloudy
Monday
High: 88 °F
Mostly Sunny

Detailed Forecast

Today

Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 85. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 2am, then a chance of showers. Patchy fog between 3am and 5am. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers and thunderstorms, mainly after 4pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 85. Calm wind becoming northwest 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 Night

A chance of showers before 8pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph.

Saturday Night

Mostly clear, with a low around 66.

Sunday

Mostly sunny, with a high near 87.

Sunday Night

Partly cloudy, with a low around 70.

Monday

Mostly sunny, with a high near 88.

Monday Night

Partly cloudy, with a low around 70.