Mastic, NY Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Mastic, NY.

0 Currently Active Alerts for Mastic

No active weather alerts for Mastic at this time.
Subscribe to receive instant notifications when alerts are issued.

Current Conditions — Mastic, NY

BROOKHAVEN (KHWV)

Cloudy

46.4 F

Humidity:76%
Wind Speed: 13.8 mph
Barometer:30.13 in
Dewpoint:39.2 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:40.3 F
Apr 22 2026, 12:15 PM EDT
Severe Weather Alerts
Severe Weather
Daily Weather Forecast
Daily Forecast
Observation Alert Monitoring
Observations
Storm Report Monitoring
Storm Reports

5-Day Forecast — Mastic, NY

Wednesday

High 51 °F
Rain Showers Likely
Wednesday
Night
Low 41 °F
Mostly Cloudy

Thursday

High 66 °F
Mostly Cloudy

Thursday
Night
Low 44 °F
Mostly Cloudy

Friday

High 57 °F
Mostly Cloudy

Friday
Night
Low 42 °F
Partly Cloudy

Saturday

High 53 °F
Chance of Rain Showers
Saturday
Night
Low 41 °F
Chance of Rain
Sunday

High 57 °F
Mostly Cloudy

Detailed Forecast — Mastic, NY

Wednesday
Rain Showers Likely. High near 51°F. Wind 3 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly Cloudy. Low around 41°F. Wind around 2 mph, with gusts as high as 7 mph.
Thursday
Mostly Cloudy. High near 66°F. Wind 2 to 9 mph, with gusts as high as 17 mph.
Thursday Night
Mostly Cloudy. Low around 44°F. Wind 3 to 5 mph, with gusts as high as 12 mph.
Friday
Mostly Cloudy. High near 57°F. Wind 3 to 6 mph, with gusts as high as 9 mph.
Friday Night
Partly Cloudy. Low around 42°F. Wind around 2 mph, with gusts as high as 8 mph.
Saturday
Chance of Rain Showers. High near 53°F. Wind 5 to 9 mph, with gusts as high as 15 mph.
Saturday Night
Chance of Rain. Low around 41°F. Wind 2 to 5 mph, with gusts as high as 10 mph.
Sunday
Mostly Cloudy. High near 57°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Sunday Night
Partly Cloudy. Low around 42°F. Wind around 5 mph, with gusts as high as 12 mph.
Monday
Slight Chance of Showers. High near 57°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Monday Night
Slight Chance of Showers. Low around 44°F. Wind 5 to 6 mph, with gusts as high as 13 mph.
Tuesday
Chance of Rain Showers. High near 57°F. Wind 7 to 12 mph, with gusts as high as 18 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • April 22, 2026

Observation History — Mastic, NY

Time Wind
(mph)
Vis
(mi)
Weather Precip (in) Temperature (F) Relative
Humidity
Wind
Chill
(F)
Heat
Index
(F)
Pressure
Air Dwpt altimeter
(in)
sea level
(mb)
12:15 PM EDT 13.8 10.00 Cloudy -- 46.4 39.2 76% 40.3 NA 30.13 1020.3
12:05 PM EDT 12.7 G 19.6 10.00 Cloudy -- 46.4 39.2 76% 40.6 NA 30.14 1020.7
12:00 PM EDT 10.4 10.00 Cloudy -- 46.4 39.2 76% 41.4 NA 30.15 1021.0
11:40 AM EDT 16.1 G 21.9 10.00 Cloudy -- 46.4 37.4 71% 39.7 NA 30.15 1021.0
11:25 AM EDT 13.8 10.00 Cloudy -- 44.6 37.4 76% 38.1 NA 30.15 1021.0
11:15 AM EDT 13.8 10.00 Cloudy -- 44.6 39.2 81% 38.1 NA 30.15 1021.0
10:55 AM EDT 12.7 G 18.4 10.00 Cloudy -- 44.6 37.4 76% 38.5 NA 30.16 1021.3
10:50 AM EDT 13.8 G 19.6 10.00 Cloudy -- 46.4 37.4 71% 40.3 NA 30.16 1021.3
10:40 AM EDT 17.3 10.00 Cloudy -- 44.6 37.4 76% 37.2 NA 30.16 1021.3
10:35 AM EDT S 17.3 10.00 Cloudy -- 44.6 37.4 76% 37.2 NA 30.16 1021.3
10:20 AM EDT 10.00 Cloudy -- 44.6 39.2 81% NA NA 30.16 1021.3
10:00 AM EDT 15.0 10.00 Cloudy -- 44.6 39.2 81% 37.8 NA 30.16 1021.3
09:45 AM EDT 15.0 10.00 Cloudy -- 44.6 39.2 81% 37.8 NA 30.17 1021.7
09:40 AM EDT 15.0 10.00 Cloudy -- 44.6 39.2 81% 37.8 NA 30.17 1021.7
09:35 AM EDT 16.1 10.00 Cloudy -- 44.6 39.2 81% 37.4 NA 30.18 1022.0
09:25 AM EDT 13.8 10.00 Cloudy -- 44.6 39.2 81% 38.1 NA 30.18 1022.0
09:10 AM EDT 13.8 G 19.6 10.00 Cloudy -- 44.6 37.4 76% 38.1 NA 30.18 1022.0
09:05 AM EDT 13.8 10.00 Cloudy -- 42.8 37.4 81% 35.8 NA 30.18 1022.0
09:00 AM EDT S 12.7 G 18.4 10.00 Cloudy -- 42.8 37.4 81% 36.1 NA 30.19 1022.4
08:45 AM EDT 11.5 10.00 Cloudy -- 42.8 37.4 81% 36.5 NA 30.19 1022.4
08:40 AM EDT 11.5 10.00 Cloudy -- 42.8 37.4 81% 36.5 NA 30.19 1022.4
08:35 AM EDT 11.5 10.00 Cloudy -- 42.8 37.4 81% 36.5 NA 30.18 1022.0
08:20 AM EDT 9.2 5.00 Haze -- 42.8 37.4 81% 37.4 NA 30.19 1022.4
08:15 AM EDT 12.7 5.00 Haze -- 42.8 37.4 81% 36.1 NA 30.19 1022.4

Regional Weather Observation

BROOKHAVEN (KHWV)

Cloudy
46.4 F

WESTHAMPTON BEAC (KFOK)

Cloudy
44.6 F

ISLIP (KISP)

Cloudy
46.4 F

BRIDGEPORT (KBDR)

Cloudy
46.4 F

FARMINGDALE (KFRG)

Cloudy
48.2 F

NEW HAVEN/TWEED (KHVN)

Cloudy
46.4 F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe