Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fog/Mist

62°F

17°C

Humidity	100%
Wind Speed	E 6 mph
Barometer	29.81 in (1009.2 mb)
Dewpoint	62°F (17°C)
Visibility	3.00 mi
Last update	15 May 11:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles SW Schaefferstown PA

Overnight
Low: 61 °F
Patchy Fog
Friday
High: 83 °F
Showers
Likely and
Patchy Fog
then Severe
Thunderstorms
Friday Night
Low: 64 °F
Severe
Thunderstorms
Saturday
High: 83 °F
Severe
Thunderstorms
then Showers
Likely
Saturday Night
Low: 57 °F
Chance
Showers then
Mostly Clear
Sunday
High: 72 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Sunday Night
Low: 54 °F
Partly Cloudy
Monday
High: 72 °F
Sunny
Monday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

Overnight

Patchy fog after 4am. Otherwise, partly cloudy, with a low around 61. Calm wind.

Friday

Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Some of the storms could be severe. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

A chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 83. Southwest wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 57. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 72. Breezy.

Sunday Night

Partly cloudy, with a low around 54.

Monday

Sunny, with a high near 72.

Monday Night

Mostly clear, with a low around 48.

Tuesday

Mostly sunny, with a high near 68.

Tuesday Night

A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.