East Coast Flash Flood/Severe Thunderstorm Threat Monday

A cold front and waves of low pressure will slowly shift across the Mid-Atlantic and Southeast states Monday and Tuesday. Heavy thunderstorms along this front may produce heavy rain and flash flooding with the highest threat Monday from Tennessee into New England. A few strong to severe thunderstorms are also possible mainly from Northern Maryland to southern New Jersey. Read More >

Hazardous Weather Conditions

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Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fair

75°F

24°C

Humidity	96%
Wind Speed	Calm
Barometer	29.89 in (1011.5 mb)
Dewpoint	74°F (23°C)
Visibility	9.00 mi
Last update	22 Jul 7:54 am EDT

More Information:

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

Extended Forecast for

Malvern PA

Flash Flood Watch until July 23, 08:00am

Click here for hazard details and duration

Flash Flood Watch

Flash Flood Watch until July 23, 08:00am

NOW until
8:00am Tue

Flash Flood Watch
Today

Severe
Thunderstorms
High: 89 °F
Tonight

Severe
Thunderstorms
Low: 68 °F
Tuesday

Heavy Rain
High: 79 °F
Tuesday
Night

Chance
Showers then
Mostly Cloudy
Low: 63 °F
Wednesday

Mostly Sunny
High: 82 °F
Wednesday
Night

Mostly Clear
Low: 62 °F
Thursday

Sunny
High: 84 °F
Thursday
Night

Mostly Clear
Low: 63 °F

Detailed Forecast

Today

Showers and thunderstorms likely, mainly after 2pm. Some storms could be severe, with damaging winds and heavy rain. Partly sunny, with a high near 89. Northeast wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers and possibly a thunderstorm. Some storms could be severe, with damaging winds and heavy rain. Low around 68. Northwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Tuesday

Showers likely, mainly before 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 79. North wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night

A chance of showers before 8pm. Mostly cloudy, with a low around 63. North wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

Mostly sunny, with a high near 82. North wind 5 to 7 mph.

Wednesday Night

Mostly clear, with a low around 62.

Thursday

Sunny, with a high near 84.

Thursday Night

Mostly clear, with a low around 63.

Friday

Sunny, with a high near 86.

Friday Night

Mostly clear, with a low around 66.