Holbrook, NY Weather Forecast & Alerts

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

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Current Conditions — Holbrook, NY

ISLIP (KISP)

Cloudy

46.4 F

Humidity:76%
Wind Speed: mph
Barometer:30.14 in
Dewpoint:39.2 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 11:05 AM EDT
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5-Day Forecast — Holbrook, NY

Wednesday

High 51 °F
Rain Showers Likely
Wednesday
Night
Low 42 °F
Mostly Cloudy

Thursday

High 66 °F
Partly Sunny

Thursday
Night
Low 44 °F
Mostly Cloudy

Friday

High 59 °F
Mostly Cloudy

Friday
Night
Low 41 °F
Slight Chance of Showers
Saturday

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

High 57 °F
Chance of Rain Showers

Detailed Forecast — Holbrook, NY

Wednesday
Rain Showers Likely. High near 51°F. Wind 3 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly Cloudy. Low around 42°F. Wind around 2 mph, with gusts as high as 7 mph.
Thursday
Partly Sunny. High near 66°F. Wind 3 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 59°F. Wind 3 to 6 mph, with gusts as high as 9 mph.
Friday Night
Slight Chance of Showers. Low around 41°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 3 mph, with gusts as high as 9 mph.
Sunday
Chance of Rain Showers. High near 57°F. Wind 6 to 10 mph, with gusts as high as 16 mph.
Sunday Night
Slight Chance of Rain. Low around 44°F. Wind 2 to 3 mph, with gusts as high as 9 mph.
Monday
Slight Chance of Rain Showers. High near 57°F. Wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Slight Chance of Rain. Low around 46°F. Wind around 3 mph, with gusts as high as 10 mph.
Tuesday
Chance of Rain Showers. High near 59°F. Wind 6 to 10 mph, with gusts as high as 16 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • April 22, 2026

Observation History — Holbrook, 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)
11:05 AM EDT 10.00 Cloudy -- 46.4 39.2 76% NA NA 30.14 1020.7
10:50 AM EDT 13.8 10.00 Cloudy -- 46.4 39.2 76% 40.3 NA 30.14 1020.7
10:45 AM EDT 15.0 10.00 Light Rain -- 46.4 39.2 76% 40.1 NA 30.15 1021.0
10:30 AM EDT 13.8 10.00 Light Rain -- 46.4 39.2 76% 40.3 NA 30.13 1020.3
10:20 AM EDT 17.3 G 25.3 10.00 Cloudy -- 46.4 39.2 76% 39.6 NA 30.14 1020.7
10:00 AM EDT 18.4 10.00 Light Rain -- 46.4 37.4 71% 39.2 NA 30.14 1020.7
09:50 AM EDT G 24.2 10.00 Mostly Cloudy -- 46.4 39.2 76% NA NA 30.15 1021.0
09:35 AM EDT S 17.3 10.00 Cloudy -- 44.6 39.2 81% 37.2 NA 30.16 1021.3
09:25 AM EDT 10.00 Cloudy -- 44.6 39.2 81% NA NA 30.16 1021.3
09:20 AM EDT S 16.1 10.00 Cloudy -- 44.6 39.2 81% 37.4 NA 30.16 1021.3
09:10 AM EDT 16.1 10.00 Light Rain -- 44.6 39.2 81% 37.4 NA 30.16 1021.3
09:05 AM EDT 12.7 10.00 Light Rain -- 44.6 39.2 81% 38.5 NA 30.16 1021.3
09:00 AM EDT 15.0 10.00 Light Rain -- 44.6 37.4 76% 37.8 NA 30.16 1021.3
08:50 AM EDT 13.8 10.00 Cloudy -- 44.6 37.4 76% 38.1 NA 30.17 1021.7
08:45 AM EDT 13.8 10.00 Cloudy -- 44.6 37.4 76% 38.1 NA 30.17 1021.7
08:35 AM EDT 13.8 10.00 Cloudy -- 44.6 37.4 76% 38.1 NA 30.17 1021.7
08:30 AM EDT 10.00 Cloudy -- 44.6 37.4 76% NA NA 30.17 1021.7
08:20 AM EDT 12.7 10.00 Cloudy -- 42.8 37.4 81% 36.1 NA 30.17 1021.7
08:15 AM EDT 11.5 10.00 Light Rain -- 42.8 35.6 76% 36.5 NA 30.17 1021.7
08:10 AM EDT 13.8 G 19.6 10.00 Light Rain -- 42.8 35.6 76% 35.8 NA 30.17 1021.7
08:05 AM EDT 15.0 10.00 Light Rain -- 42.8 35.6 76% 35.4 NA 30.17 1021.7
08:00 AM EDT 12.7 10.00 Light Rain -- 42.8 37.4 81% 36.1 NA 30.18 1022.0
07:50 AM EDT 13.8 10.00 Light Rain -- 42.8 37.4 81% 35.8 NA 30.17 1021.7
07:40 AM EDT 11.5 10.00 Light Rain -- 42.8 37.4 81% 36.5 NA 30.17 1021.7

Regional Weather Observation

ISLIP (KISP)

Cloudy
46.4 F

BROOKHAVEN (KHWV)

Cloudy
44.6 F

FARMINGDALE (KFRG)

Cloudy
46.4 F

BRIDGEPORT (KBDR)

Cloudy
46.4 F

WESTHAMPTON BEAC (KFOK)

Light Rain
44.6 F

WHITE PLAINS (KHPN)

Light Drizzle
46.4 F
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