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Mastic Beach, NY 11951 Weather

It is 64°F and clear in Mastic Beach, NY 11951, observed at 12:10 PM EDT. Today: Sunny, high 64°F, low 55°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Mastic Beach, NY 11951 current weather

64°F

Clear

H 64° / L 55°Feels like 64°

5° warmer than yesterday at this time

  • No rain expected in the next 12 hours

Observed at Shirley, Brookhaven Airport (4.3 mi away), 10/29/2026, 12:10 PM EDT

Hourly forecast

NWS, updated 10/28/2026, 11:30 PM PT

  1. Now63°
  2. 1 PM63°
  3. 2 PM63°
  4. 3 PM63°
  5. 4 PM64°
  6. 5 PM62°
  7. 6 PM61°
  8. 7 PM60°
  9. 8 PM57°
  10. 9 PM57°
  11. 10 PM57°
  12. 11 PM57°
  13. 12 AM57°Fri
  14. 1 AM57°
  15. 2 AM57°
  16. 3 AM57°
  17. 4 AM56°
  18. 5 AM56°
  19. 6 AM56°
  20. 7 AM55°
  21. 8 AM56°
  22. 9 AM58°
  23. 10 AM62°
  24. 11 AM64°
  25. 12 PM66°
  26. 1 PM66°
  27. 2 PM67°
  28. 3 PM68°
  29. 4 PM66°
  30. 5 PM65°
  31. 6 PM62°
  32. 7 PM58°
  33. 8 PM55°
  34. 9 PM53°
  35. 10 PM51°
  36. 11 PM50°
  37. 12 AM49°Sat
  38. 1 AM48°
  39. 2 AM47°
  40. 3 AM46°
  41. 4 AM46°
  42. 5 AM45°
  43. 6 AM44°
  44. 7 AM43°
  45. 8 AM44°
  46. 9 AM46°
  47. 10 AM50°
  48. 11 AM53°

10-day forecast

Tap a day for details

  • Today10/29Low 55°High 64°

    This Afternoon: Sunny. High near 64, with temperatures falling to around 62 in the afternoon. Southwest wind around 10 mph.

    Tonight: Partly cloudy, with a low around 55. Southwest wind around 12 mph.

    Sunny
  • Fri10/30Low 43°High 68°

    Friday: Sunny. High near 68, with temperatures falling to around 65 in the afternoon. West wind 10 to 17 mph.

    Friday Night: Mostly clear. Low around 43, with temperatures rising to around 45 overnight. Northwest wind 12 to 17 mph.

    Sunny
  • Sat10/31Low 42°High 58°

    Saturday: Sunny, with a high near 58. North wind 6 to 12 mph.

    Saturday Night: Mostly cloudy, with a low around 42.

    Sunny
  • Sun11/1Low 49°High 60°

    Sunday: Mostly sunny, with a high near 60.

    Sunday Night: Partly cloudy, with a low around 49.

    Mostly Sunny
  • Mon11/2Low 51°High 63°

    Monday: Partly sunny, with a high near 63.

    Monday Night: Mostly cloudy, with a low around 51.

    Partly Sunny
  • Tue11/316% chance of precipitationLow 51°High 63°

    Tuesday: Partly sunny, with a high near 63.

    Tuesday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 51.

    Partly Sunny
  • Wed11/431% chance of precipitationLow 53°High 64°

    Wednesday: A slight chance of rain showers. Partly sunny, with a high near 64.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 53.

    Slight Chance Rain Showers
  • Thu11/5Model blend56% chance of precipitationLow 52°High 67°

    Thursday: Chance of rain. High near 67°. Low that night near 52°. About 0.57 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend56% chance of precipitationLow 47°High 66°

    Friday: Chance of rain. High near 66°. Low that night near 47°. About 1.77 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blend46% chance of precipitationLow 42°High 61°

    Saturday: Chance of rain. High near 61°. Low that night near 42°. About 0.46 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 40.764, -72.836 from the NWS OKX office, updated 10/28/2026, 11:30 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KHWV (Brookhaven Arpt, 4 mi), model run 10/29/2026, 10:00 AM EDT

Hazardous weather outlookIssued 10/29/2026, 2:32 AM EDT

This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York.

Day one

Today and tonight.

No hazardous weather is expected at this time.

Days two through seven

Friday through Wednesday.

No hazardous weather is expected at this time that would meet NWS warning criteria.

Spotter information statement

Spotter activation is not expected at this time.

This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria.

Forecaster's discussionIssued 10/29/2026, 7:31 AM EDT

What has changed

SCA issued for the ocean waters out to 20nm for Friday afternoon/night.

Key messages

1) A dry cold frontal passage on Friday will be followed by another strong area of high pressure for the weekend.

Key message 1

A shortwave trough riding over top of the upper ridge will send a cold front toward the area today, with the frontal passage Friday morning. Another area of strong high pressure builds into the area for the weekend with more autum-like airmass. System is moisture starved and any shower activity with the front is forecast to remain north of the area.

Gusty NW winds will follow behind the cold front Friday with the potential for gusts up to 30 mph in the afternoon. NBM and NBM90 looked too deficient in the cold advection based on 00Z model soundings. This is a noted bias. Used a blend of the raw GFS, NAM12 and NBM/NBM90.

Temperatures today into Friday will be about 10 degrees above normal, with highs in the 60s to around 70, and lows mainly in the 50s. However, it cools back down to more seasonable levels for the weekend with highs in the 50s to around 60, and lows in the 30s and 40s. Frost is possible Saturday night for some coastal locations where the growing season has yet to end.

Guidance continues to keep dry conditions in place through early next week. Conditions may begin to turn more unsettled by mid next week.

Aviation

High pressure remains nearby throughout the TAF period.

VFR conditions continue.

Winds will primarily be light and variable through the morning push. Winds become more SW mid morning, with wind speeds around 7 to 10 kt during the afternoon and early evening. Winds remain from the SW but lighten a bit Thursday night.

NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty:

No amendments expected.

Outlook for 12z friday through monday

Friday through Saturday: VFR. NW winds G20-25kt possible Fri afternoon.

Sunday: Mainly VFR.

Monday: Manly VFR. Low chance of a shower with pockets of sub VFR possible.

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

Marine

SCA has been issued for the ocean waters out to 20nm for Friday afternoon/night.

A cold frontal passage Friday morning will be followed by a gusty NW flow developing during the afternoon hours with gusts up to 30 kt into the first half of Friday night.

The SCA may need to be extended to the non-ocean waters. For the time, there is a mention of occasional 25 kt gusts.

High pressure builds in for the weekend with sub-SCA conditions expected into at least early next week.

Watches, warnings and advisories

CT: None. NY: None. NJ: None. MARINE: Small Craft Advisory from 2 PM Friday to 3 AM EDT Saturday for ANZ350-353-355.

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now63°Sunny1%8 mph
  2. 1 PM63°Sunny1%9 mph
  3. 2 PM63°Sunny1%10 mph
  4. 3 PM63°Sunny1%10 mph
  5. 4 PM64°Sunny1%10 mph
  6. 5 PM62°Sunny1%10 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Observed today

Since midnight, vs yesterday and normal

Today's high so far is 6° above the normal of 59° and 4° warmer than yesterday's high.

High so far
65°
6° above normal
Low so far
41°
Normal low 42°
Precipitation
0.00 in
Since midnight
Yesterday
High 61° · Low 36° · Precip 0.00 in
Normal for today
High 59° · Low 42°

Observed at Shirley, Brookhaven Airport (KHWV) since midnight local time, through 12:10 PM. Station reports are preliminary and not quality controlled. Normals are estimated from 1991 to 2020 monthly normals at Shirley Brookhaven AP.

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Mastic Beach, NY 11951 right now?
The latest observation from Shirley, Brookhaven Airport was 64°F and clear, reported at 10/29/2026, 12:10 PM EDT.
What is the high temperature today in Mastic Beach, NY 11951?
The National Weather Service forecast for this afternoon calls for a high near 64°F. Sunny.
Will it rain in Mastic Beach, NY 11951 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Mastic Beach, NY 11951?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 61°F to 67°F and up to a 56% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Mastic Beach, NY 11951 today?
Sunrise is about 7:18 AM EDT and sunset is about 5:51 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Mastic Beach, NY 11951?
At Shirley Brookhaven AP, the 1991 to 2020 normal high in October is 64°F and the normal low is 46°F.

Nearby hazards

New York hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Stratford)
54ModeratePM2.5
AQI forecast tomorrow (Stratford)
56ModeratePM2.5

UV index guide · Air quality

Drought

By county

Suffolk County, week of 10/27/2026

23% of the county is abnormally dry. No drought.

Tides nearby

Today at Smith Point Bridge, Narrow Bay, local time

  • High12:18 AM 1.2 ft
  • Low6:55 AM 0.1 ft
  • High12:49 PM 1.7 ft
  • Low8:11 PM 0.3 ft

Marine forecast

Marine

South Shore Bays from Jones Inlet through Shinnecock Bay · updated 10/28/2026, 11:39 PM PT

Today
SW winds around 5 kt, increasing to 5 to 10 kt this afternoon. Waves 1 ft or less.
Tonight
SW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less.

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
7:18 AM
Sunset
5:51 PM
Daylight
10 hr 33 min
Moon
Waning Gibbous 86% lit
First light (civil dawn)
6:50 AM
Last light (civil dusk)
6:19 PM
Moonrise
8:14 PM
Moonset
11:31 AM

Normal October weather

Climate

Normal October high 64°, low 46°, precipitation 3.99 in for the month. 1991 to 2020 normals at Shirley Brookhaven AP, 4 mi away.

Other places nearby

Data sources

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About this data

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