Weather Warnings for Pennsylvania

Issued by the National Weather Service

Current watches, warnings, and advisories for Pennsylvania
Alerts Updated: April 12, 2026, 12:00 am  UTC


Frost Advisory issued April 11 at 1:54PM EDT until April 12 at 8:00AM EDT by NWS Mount Holly NJ

Summary: * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Berks, Western Chester, and Western Montgomery Counties. * WHEN...From 2 AM to 8 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Severity:  Minor    Effective:  April 11, 2026, 1:54 pm      Expires:  April 12, 2026, 8:00 am
Area:  Berks; Western Chester; Western Montgomery


Frost Advisory issued April 11 at 1:20PM EDT until April 12 at 8:00AM EDT by NWS State College PA

Summary: * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Dauphin, Juniata, Lancaster, Lebanon, Mifflin, Montour, Northumberland, Perry, Snyder, and Union Counties. * WHEN...From 2 AM to 8 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Severity:  Minor    Effective:  April 11, 2026, 1:20 pm      Expires:  April 12, 2026, 8:00 am
Area:  Mifflin; Juniata; Union; Snyder; Montour; Northumberland; Perry; Dauphin; Lebanon; Lancaster