Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Partly Cloudy

84°F

29°C

Humidity	61%
Wind Speed	NA
Barometer	29.76 in (1007.5 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	12 Jun 5:53 pm EDT

More Information:

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

Extended Forecast for

Lewisburg PA

Tonight
Low: 60 °F
Mostly Clear
Saturday
High: 88 °F
Sunny
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 86 °F
Slight Chance
Showers then
Showers
Sunday Night
Low: 56 °F
Showers then
Chance
Showers
Monday
High: 75 °F
Mostly Sunny
Monday Night
Low: 52 °F
Partly Cloudy
Tuesday
High: 77 °F
Mostly Sunny
Tuesday Night
Low: 55 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 60. West wind 5 to 8 mph becoming calm after midnight.

Saturday

Sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.

Saturday Night

Mostly clear, with a low around 61. Calm wind.

Sunday

A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 86. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 56. Southwest wind around 8 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

Mostly sunny, with a high near 75.

Monday Night

Partly cloudy, with a low around 52.

Tuesday

Mostly sunny, with a high near 77.

Tuesday Night

Partly cloudy, with a low around 55.

Wednesday

A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.

Wednesday Night

A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 40%.