Copiague, NY Weather

Suffolk County7:15 PM EDT40.68°N, 73.40°WElevation 23 ft
Coastal Flood Advisory until 9:00 PM Wed

Current conditions

Clear
57°
Clear
Feels like 57°
High 65° Thursday·Low 46° tonight
WindNNE 11 mph
Humidity51%
Dew point39°
Pressure30.10 inHg
Visibility10 mi
Cloud cover57%
UV index0 Low
Sunrise7:12 AM
Sunset6:06 PM

Observed at Farmingdale - Republic Airport · 40 min ago

Forecast

10-day

  • Wednesday Night

    Mostly cloudy, with a low around 46. North wind 13 to 16 mph, with gusts as high as 30 mph.

  • Thursday

    Sunny. High near 65, with temperatures falling to around 62 in the afternoon. North wind around 15 mph.

  • Thursday Night

    Mostly clear, with a low around 44.

National Weather Service forecast updated 1 day ago.

Hourly

Hourly forecast
  1. Now Mostly Cloudy 54°
  2. 8 PM Mostly Cloudy 54°
  3. 9 PM Mostly Cloudy 53°
  4. 10 PM Mostly Cloudy 52°
  5. 11 PM Partly Cloudy 50°
  6. Thu12 AM Partly Cloudy 49°
  7. 1 AM Mostly Cloudy 48°
  8. 2 AM Mostly Cloudy 48°
  9. 3 AM Mostly Cloudy 47°
  10. 4 AM Mostly Cloudy 47°
  11. 5 AM Mostly Cloudy 46°
  12. 6 AM Mostly Sunny 46°
  13. 7 AM Mostly Sunny 46°
  14. 8 AM Mostly Sunny 46°
  15. 9 AM Mostly Sunny 48°
  16. 10 AM Mostly Sunny 51°
  17. 11 AM Sunny 54°
  18. 12 PM Sunny 57°
  19. 1 PM Sunny 60°
  20. 2 PM Sunny 62°
  21. 3 PM Sunny 63°
  22. 4 PM Sunny 63°
  23. 5 PM Sunny 62°
  24. 6 PM Mostly Clear 61°

10-day forecast

Details
  1. TueOct 20 Sunny Sunny47°67°
  2. TodayOct 21 Mostly Sunny Mostly Sunny46°60°
  3. ThuOct 22 Sunny Sunny44°65°
  4. FriOct 23 Sunny Sunny43°58°
  5. SatOct 24 Sunny Sunny43°58°
  6. SunOct 25 Sunny Sunny49°63°
  7. MonOct 26 Mostly Sunny Mostly Sunny50°67°
  8. TueOct 27 Sunny Sunny44°62°
  9. WedOct 28 Partly cloudy Partly cloudy41°56°
  10. ThuOct 29 Partly cloudy Partly cloudy0.24 in51°61°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Copiague

More weather news

Air quality

28
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • WedGood (20)
  • ThuGood (26)

Long Island Region, NY reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:12 AM
Sunset 6:06 PM
Daylight 10 h 54 min (−2 min 33 s tomorrow)
Waxing Gibbous · 81% lit
Moonrise 3:46 PM Moonset 2:10 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low63° / 48°
Month to date1.75 in (normal 2.46 in)

Jfk International Airport, records since 1948. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in OKX, issued 3 hrs ago

What Has Changed

Timing of marine hazards has changed some. See marine section below.

Key Messages

1) Mainly dry conditions will continue into early next week with gradually decreasing N-NE winds through the end of this week.

2) A brief period of minor coastal flooding possible along the south shore back bays of western LI and portions of Lower New York Harbor this afternoon into early this evening.

Key Message 1

Deepening low pressure over the western Atlantic, along the 70th meridian and south of the 40th parallel, will track slowly north tonight and then take a more eastward turn on Thursday. Guidance remains in very good agreement with the track of the system, taking it well south and east of the area. High pressure will then slowly build in through the weekend.

Northerly winds will continue to gust, especially along the coast, up to 30mph. Highest winds and gusts will be during the daytime hours with max mixing in the boundary layer. However, winds will begin to gradually diminish Thursday afternoon into Friday as the low pulls away and high pressure builds in from the west.

In addition, with the northerly flow on the backside of the low and a passing shortwave trough to the north across eastern Canada into the Northeast Thursday night, cooler air will arrive for Friday into the start of the weekend. Daytime highs will go from the 60s on Thursday to the 50s for Friday and Saturday. Additionally, with winds decreasing, frost will be possible Friday and Saturday nights with lows in the 30s away from the NYC metro. A warming trend begins early next week.

.KEY MESSAGE 2... The combination of a prolonged period of easterly swells from offshore low pressure and increasing astronomical tides with the approach of a full moon (Monday 10/26), will allow for water levels to come close to minor coastal flood benchmarks into early this evening along the south shore back bays of western LI and portions of Lower NY. Latest observations show water levels coming in several tenths below forecast. It is possible, that water level stay below, but will remain on the safe side until this high tide cycle passes. Coastal flood advisories and statements remain in effect.

Thereafter, it looks real marginal heading into Thursday and Friday with winds becoming more northerly and decreasing easterly swells.

Outlook For 18z Thursday Through Monday

Thursday: VFR. NNW winds G15-25kt.

Friday: VFR. NNE winds, with G15-20kt mainly in morning.

Saturday, Sunday, and Monday: VFR with light winds.

Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.