Weather Alerts For Hillsdale, NJ

# HEADLINE -------------------- FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO 9 AM EDT TUESDAY # DETAILS -------------------- WHAT For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected. WHERE Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN For the Frost Advisory, until 8 AM EDT Monday. For the Freeze Warning, from midnight Monday Night to 9 AM EDT Tuesday. IMPACTS Frost and freeze conditions could kill crops and other sensitive vegetation. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. ISSUED AT Sunday, April 19, 2026 at 11:53 PM EDT ISSUED BY National Weather Service New York NY HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take steps now to protect tender plants from the cold. # AREAS AFFECTED -------------------- Northwest Suffolk, Eastern Bergen, Eastern Passaic, Northeast Suffolk, Northern Westchester, Rockland, Southeast Suffolk, Southern Fairfield, Southern Middlesex, Southern New Haven, Southern New London, Southern Westchester, Southwest Suffolk, Western Bergen, Western Passaic

# HEADLINE -------------------- FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO 9 AM EDT TUESDAY # DETAILS -------------------- WHAT For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected. WHERE Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN For the Frost Advisory, until 8 AM EDT Monday. For the Freeze Warning, from midnight Monday Night to 9 AM EDT Tuesday. IMPACTS Frost and freeze conditions could kill crops and other sensitive vegetation. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. ISSUED AT Sunday, April 19, 2026 at 11:53 PM EDT ISSUED BY National Weather Service New York NY HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take steps now to protect tender plants from the cold. # AREAS AFFECTED -------------------- Northwest Suffolk, Eastern Bergen, Eastern Passaic, Northeast Suffolk, Northern Westchester, Rockland, Southeast Suffolk, Southern Fairfield, Southern Middlesex, Southern New Haven, Southern New London, Southern Westchester, Southwest Suffolk, Western Bergen, Western Passaic

Pollen Index: 8.2 Pollen Level: medium-high Predominant Pollen: Maple, Cedar/Juniper and Poplar/Aspen/Cottonwood. The quantity of pollen grains in the air for Monday will be higher than they were today and extend further into the very high range. This increase is due to strong winds and decreasing humidity. If you do suffer from allergies tomorrow could be more difficult.