Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

A Few Clouds

76°F

24°C

Humidity	45%
Wind Speed	W 6 mph
Barometer	29.81 in (1009.2 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	20 Jun 5:51 pm EDT

More Information:

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

Extended Forecast for

Mertztown PA

Tonight
Low: 59 °F
Isolated
T-storms then
Mostly Clear
Sunday
High: 80 °F
Sunny
Sunday Night
Low: 59 °F
Mostly Cloudy
Monday
High: 78 °F
Showers
Likely then
Heavy Rain
Monday Night
Low: 63 °F
Heavy Rain
Tuesday
High: 78 °F
Chance
Showers
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 61 °F
Mostly Clear

Detailed Forecast

Tonight

Isolated showers and thunderstorms before 8pm, then isolated showers between 8pm and 10pm. Partly cloudy, with a low around 59. West wind 10 to 15 mph becoming light in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

Sunday

Sunny, with a high near 80. Light west wind increasing to 10 to 15 mph in the morning.

Sunday Night

Mostly cloudy, with a low around 59. Northwest wind around 5 mph becoming calm.

Monday

Showers likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 78. East wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Monday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 63. Southeast wind around 5 mph becoming southwest after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday

A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm. Partly sunny, with a high near 78. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Mostly clear, with a low around 59.

Wednesday

Sunny, with a high near 81.

Wednesday Night

Mostly clear, with a low around 61.

Thursday

A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 82.