Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

63°F

17°C

Humidity	31%
Wind Speed	N 12 mph
Barometer	30.28 in (1025.4 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Last update	11 Apr 4:53 pm EDT

More Information:

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

Extended Forecast for

Cornwall PA

Frost Advisory April 12, 02:00am until April 12, 08:00am

Click here for hazard details and duration

Frost Advisory

Tonight
Low: 37 °F
Mostly Clear
Sunday
High: 62 °F
Mostly Sunny
Sunday Night
Low: 50 °F
Mostly Cloudy
Monday
High: 78 °F
Mostly Cloudy
then Slight
Chance
Showers
Monday Night
Low: 58 °F
Slight Chance
Showers
Tuesday
High: 81 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Partly Cloudy
Wednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 65 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 37. North wind 5 to 8 mph becoming northeast after midnight.

Sunday

Mostly sunny, with a high near 62. South wind 6 to 13 mph, with gusts as high as 23 mph.

Sunday Night

Mostly cloudy, with a low around 50. South wind 10 to 14 mph, with gusts as high as 21 mph.

Monday

A slight chance of showers after 2pm. Mostly cloudy, with a high near 78. Southwest wind 10 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

Monday Night

A slight chance of showers before 2am. Partly cloudy, with a low around 58. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 81.

Tuesday Night

Partly cloudy, with a low around 62.

Wednesday

Mostly sunny, with a high near 86.

Wednesday Night

Mostly cloudy, with a low around 65.

Thursday

Partly sunny, with a high near 85.

Thursday Night

A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.