Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Mostly Cloudy

80°F

27°C

Humidity	77%
Wind Speed	SW 5 mph
Barometer	29.94 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	18 Jun 12:35 pm EDT

More Information:

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

Extended Forecast for

Merion Station PA

Severe T-storm Watch until June 18, 07:00pm

Heat Advisory June 19, 11:00am until June 19, 08:00pm

Click here for hazard details and duration

Severe T-storm Watch

Heat Advisory

Severe T-storm Watch until June 18, 07:00pm
NOW until 7:00pm Wed
Severe T-storm Watch
This Afternoon
High: 86 °F
T-storms
Tonight
Low: 72 °F
T-storms
Likely then
Patchy Fog
Juneteenth
High: 92 °F
Mostly Sunny
then Severe
Thunderstorms
Thursday Night
Low: 66 °F
Severe
Thunderstorms
then Chance
Showers
Friday
High: 83 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 87 °F
Sunny
Saturday Night
Low: 69 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 86. Southwest 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, mainly before 8pm. Patchy fog between midnight and 3am. Otherwise, mostly cloudy, with a low around 72. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Juneteenth

Showers and thunderstorms after 2pm. Some of the storms could be severe. High near 92. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Low around 66. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

Sunny, with a high near 83. Northwest wind around 10 mph.

Friday Night

Mostly clear, with a low around 65.

Saturday

Sunny, with a high near 87.

Saturday Night

Partly cloudy, with a low around 69.

Sunday

Mostly sunny, with a high near 91.

Sunday Night

Mostly clear, with a low around 74.