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

Heat Advisory until June 19, 08:00 PM EDT

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

81°F

27°C

Humidity	74%
Wind Speed	W 5 mph
Barometer	29.87 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	18 Jun 7:15 pm EDT

More Information:

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

Extended Forecast for

Newtown Square PA

Heat Advisory June 18, 07:33pm until June 19, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory June 18, 07:33pm until June 19, 08:00pm
NOW until 8:00pm Thu
Heat Advisory
Tonight
Low: 70 °F
Slight Chance
T-storms then
Mostly Clear
Juneteenth
High: 90 °F
Sunny then
T-storms
Likely
Thursday Night
Low: 65 °F
T-storms
Likely then
Partly Cloudy
Friday
High: 82 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 87 °F
Sunny
Saturday Night
Low: 70 °F
Partly Cloudy
Sunday
High: 90 °F
Partly Sunny

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 5 mph. Chance of precipitation is 20%.

Juneteenth

Showers and thunderstorms likely, mainly between 4pm and 5pm. Sunny, with a high near 90. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Sunny, with a high near 82. Northwest wind around 10 mph.

Friday Night

Mostly clear, with a low around 65. West wind around 5 mph.

Saturday

Sunny, with a high near 87.

Saturday Night

Partly cloudy, with a low around 70.

Sunday

Partly sunny, with a high near 90.

Sunday Night

Mostly clear, with a low around 73.