Flooding Impacts Expected Across the Southwest and Southern U.S.; Heat Continues for Portions of the West

Monsoon activity will increase and generate localized flash flooding for arroyos, slot canyons, urban areas, as well as rapid rises on rivers, through this weekend from the Southwest into the Southern Plains. Excessive heat will continue over portions of central Washington and interior California today with temperatures into the 100s. Severe weather possible for the Mid-Mississippi Valley today. Read More >

En Español

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Partly Cloudy

87°F

31°C

Humidity	43%
Wind Speed	S 9 mph
Barometer	30.06 in (1017.4 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	19 Aug 5:53 pm EDT

More Information:

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

Extended Forecast for

Lancaster PA

Tonight

Slight Chance
Showers then
Mostly Cloudy
Low: 68 °F
Saturday

Mostly Sunny
then Chance
Showers
High: 89 °F
Saturday
Night

Slight Chance
T-storms then
Slight Chance
Showers
Low: 68 °F
Sunday

Slight Chance
Showers then
Chance
Showers
High: 84 °F
Sunday
Night

Showers
Likely
Low: 70 °F
Monday

Chance
Showers then
Showers
High: 83 °F
Monday
Night

Showers then
Chance
T-storms
Low: 66 °F
Tuesday

Partly Sunny
then Chance
Showers
High: 85 °F
Tuesday
Night

Chance
Showers then
Partly Cloudy
Low: 66 °F

Detailed Forecast

Tonight

A slight chance of showers before 7pm. Mostly cloudy, with a low around 68. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Saturday

A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

Saturday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Southeast wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 70. Southeast wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday

A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 66. Chance of precipitation is 80%.

Tuesday

A chance of showers after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.

Tuesday Night

A chance of showers before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Wednesday

Mostly sunny, with a high near 88.

Wednesday Night

Partly cloudy, with a low around 67.

Thursday

Mostly sunny, with a high near 89.

Thursday Night

Partly cloudy, with a low around 67.