Delaware, Pennsylvania Freeze Warning | Effective 04/20/2026 11:30

Headline: 
Freeze Warning issued April 20 at 2:30PM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ
Event: 
Freeze Warning
Urgency: 
Expected
Effective: 
April 20, 2026 - 11:30am
Expires: 
April 21, 2026 - 2:00am
Description: 
* WHAT...Sub-freezing temperatures as low as 27 degrees expected. * WHERE...In Delaware, New Castle County. In Pennsylvania, Delaware and Philadelphia Counties. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Instruction: 
Take steps now to protect tender plants from the cold.
Area Description: 
New Castle; Delaware; Philadelphia
Forcast Office: 
NWS Mount Holly NJ