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National Weather Service

Extreme heat warning extended through Saturday evening

by Jul 2, 2026
The National Weather Service has extended an extreme heat warning for Riverhead through 9 p.m. Saturday.

Dangerous heat, poor air quality expected on Long Island this week

by Jun 30, 2026
An extreme heat warning is in effect from noon Wednesday through Friday night, with an ozone advisory posted Wednesday.

Extreme heat watch issued for Long Island as heat index could near 110º midweek

by Jun 29, 2026
Long Island faces dangerously hot and humid conditions from Wednesday afternoon through Friday evening, with heat index values expected to reach between 105 and 110, the National Weather Service said.

Freeze watch issued for Long Island Monday night through Tuesday morning

by Apr 19, 2026
A freeze watch is in effect for Long Island, including Riverhead and the East End, with subfreezing temperatures possible late Monday night into Tuesday morning, according to the National Weather Service in Upton.

Dense fog advisory in effect Tuesday night into Wednesday morning

by Feb 17, 2026
A dense fog advisory is in effect from 10 p.m. Tuesday through 10 a.m. Wednesday, the National Weather Service said in a statement this afternoon.

Dangerously cold wind chill values forecast this weekend

by Feb 5, 2026
Dangerously cold wind chills as low as 20 degrees below zero are forecast Saturday night into early Sunday morning, according to the National Weather Service.

Cold weather advisory again in effect Sunday morning, with wind chills of -5 to -10

by Feb 1, 2026
Temperatures in the teens Sunday morning plus blustery winds mean wind chill values as low as -5º to -10º, the National Weather Service said.

Wind, coastal flood advisories and gale warning in in effect Friday

by Dec 19, 2025
Strong gusty winds and rain have prompted wind and coastal flood advisories and gale warnings for the L.I. Sound and bays Friday.

Riverhead closes Sound beaches Friday due to ‘rough surf and hazardous conditions’ from Hurricane Erin

by Aug 22, 2025
Riverhead Town’s beaches on the Long Island Sound will be closed today “as a result of rough surf and hazardous conditions resulting from Hurricane Erin,” Supervisor Tim Hubbard said in a press release.

Wind advisory: Strong winds, 45-50 mph gusts

by Jan 29, 2025
West-northwest winds of 20 to 25 mph  with gusts of 45 to 50 mph are forecast. The advisory is in effect from 9 a.m. to 10 p.m. today.