Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

66°F

19°C

Humidity	90%
Wind Speed	Calm
Barometer	30.13 in (1020.0 mb)
Dewpoint	63°F (17°C)
Visibility	9.00 mi
Last update	30 Jun 4:53 am EDT

More Information:

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

Extended Forecast for

Silver Spring PA

Heat Advisory July 3, 08:00pm until July 4, 08:00pm

Extreme Heat Warning July 1, 12:00pm until July 3, 08:00pm

Click here for hazard details and duration

Heat Advisory

Extreme Heat Warning

Today
High: 90 °F
Sunny
Tonight
Low: 71 °F
Partly Cloudy
Wednesday
High: 97 °F
Mostly Sunny
then Isolated
T-storms
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 101 °F
Hot
Thursday Night
Low: 77 °F
Clear
Friday
High: 102 °F
Hot
Friday Night
Low: 75 °F
Partly Cloudy
Independence Day
High: 99 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 90. Light southeast wind becoming south 5 to 10 mph in the morning.

Tonight

Partly cloudy, with a low around 71. South wind 9 to 13 mph.

Wednesday

Isolated showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 75. South wind 5 to 8 mph.

Thursday

Sunny and hot, with a high near 101. West wind 3 to 6 mph.

Thursday Night

Clear, with a low around 77.

Friday

Sunny and hot, with a high near 102.

Friday Night

Partly cloudy, with a low around 75.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.