Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fog/Mist

75°F

24°C

Humidity	96%
Wind Speed	NA
Barometer	30.06 in (1017.4 mb)
Dewpoint	74°F (23°C)
Visibility	5.00 mi
Last update	2 Jul 6:53 am EDT

More Information:

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

Extended Forecast for

Millersburg PA

Extreme Heat Warning July 2, 06:58am until July 4, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 06:58am until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Today
High: 102 °F
Hot
Tonight
Low: 77 °F
Mostly Clear
Friday
High: 100 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 76 °F
Partly Cloudy
Independence Day
High: 98 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 71 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 92 °F
Partly Sunny
then Showers
Likely
Sunday Night
Low: 69 °F
Showers

Detailed Forecast

Today

Sunny and hot, with a high near 102. Heat index values as high as 109. Calm wind becoming west around 5 mph in the afternoon.

Tonight

Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.

Friday

A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 76. West wind around 5 mph becoming calm in the evening.

Independence Day

A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

Saturday Night

A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 92. Chance of precipitation is 70%.

Sunday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 69. Chance of precipitation is 80%.

Monday

A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 80%.

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

Partly sunny, with a high near 86.

Tuesday Night

Partly cloudy, with a low around 66.

Wednesday

A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.