Live Weather & Forecast
Weather in West Islip
New York, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
64°F / Feels 64°F
Clear
West Islip, New York
🌙 Nighttime
Updated: 2026-04-15 21:00
Humidity
68%
Wind
11.2 km/h SSW
Wind Gust
23.4 km/h
Pressure
1011 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
11.4°C
Wind Degree
213°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
180.9 μg/m³
NO₂
20.6 μg/m³
O₃
79 μg/m³
SO₂
4.5 μg/m³
PM 2.5
16.2 μg/m³
PM 10
18.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for West Islip, New York
12 AM
18°
Clear
1 AM
17°
Clear
2 AM
16°
Clear
3 AM
16°
Clear
4 AM
16°
Clear
5 AM
15°
Clear
6 AM
15°
Clear
7 AM
17°
Sunny
8 AM
19°
Partly Cloudy
9 AM
21°
Partly Cloudy
10 AM
25°
Sunny
11 AM
27°
Sunny
12 PM
28°
Sunny
1 PM
29°
Sunny
2 PM
29°
Sunny
3 PM
28°
Sunny
4 PM
27°
Sunny
5 PM
26°
Sunny
6 PM
24°
Sunny
7 PM
21°
Sunny
8 PM
20°
Clear
9 PM
18°
Clear
10 PM
18°
Clear
11 PM
18°
Clear
3-Day Forecast
Daily overview for West Islip, New York
Today
Sunny
30°
/
14°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Sunny
31°
/
16°
🌧️ 0% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:13 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Patchy rain nearby
25°
/
13°
🌧️ 88% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 17.3 km/h
🌧️ Total precip: 3.12 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:11 AM
🌇 Sunset: 07:35 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit West Islip
Plan your trip to West Islip, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in West Islip?
Current conditions in West Islip: Clear, temperature 18°C, humidity 68%.
What is the best time to visit West Islip?
The best time to visit West Islip is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in West Islip?
West Islip is located at approximately 40.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in West Islip?
The wettest period in West Islip is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to West Islip?
For visits to West Islip during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is West Islip in?
West Islip is located in United States, in the state of New York.
What are the public holidays in West Islip in 2026?
View the 2026 public holidays for West Islip on our Holidays page.
What are the GPS coordinates used for the weather forecast in West Islip?
The weather forecast for West Islip uses coordinates 40.7059, -73.3077.