Long Island MacArthur Airport (ISP) 15 Day Weather Forecast, Islip United States
Current weather conditions and 15 day weather forecast for Long Island MacArthur Airport in Islip, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at ISP
| 14 May 2026 Thu 14.4 ° C ( 57.9°F )  Overcast |
Feels Like : 15.1 ° C / 59.2°F Humidity : % 81 Pressure : 1008 mb Wind Speed : 3.6 kmph / 2.2 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Long Island MacArthur Airport, Islip, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 14 May 2026 Thu |  Moderate rain |
11.6 ° C | 19.6 ° C | 14.8 ° C | % 80 | 19.4 km/h | 84% |
| 15 May 2026 Fri |  Patchy rain nearby |
10.4 ° C | 16.2 ° C | 12.9 ° C | % 76 | 15.8 km/h | 87% |
| 16 May 2026 Sat |  Sunny |
11.1 ° C | 17.5 ° C | 14.4 ° C | % 72 | 20.9 km/h | 0% |
| 17 May 2026 Sun | Patchy rain nearby |
14.1 ° C | 24.1 ° C | 18.8 ° C | % 72 | 18.4 km/h | 89% |
| 18 May 2026 Mon | Patchy rain nearby |
15.6 ° C | 20.4 ° C | 18.1 ° C | % 77 | 14.4 km/h | 81% |
| 19 May 2026 Tue | Sunny |
14.8 ° C | 24.3 ° C | 18.7 ° C | % 77 | 24.1 km/h | 0% |
| 20 May 2026 Wed | Patchy rain nearby |
17.7 ° C | 23.6 ° C | 20.2 ° C | % 72 | 22.3 km/h | 89% |
| 21 May 2026 Thu |  Partly Cloudy |
14.8 ° C | 18.8 ° C | 17.2 ° C | % 51 | 13.7 km/h | 0% |
| 22 May 2026 Fri | Patchy rain nearby |
11.1 ° C | 14.2 ° C | 12.7 ° C | % 83 | 29.9 km/h | 86% |
| 23 May 2026 Sat | Patchy rain nearby |
8.6 ° C | 10.4 ° C | 10 ° C | % 89 | 28.4 km/h | 87% |
| 24 May 2026 Sun | Partly Cloudy |
9.1 ° C | 17.8 ° C | 13.3 ° C | % 58 | 28.4 km/h | 0% |
| 25 May 2026 Mon | Sunny |
11.2 ° C | 21 ° C | 16.4 ° C | % 54 | 16.6 km/h | 0% |
| 26 May 2026 Tue | Partly Cloudy |
14.9 ° C | 21.9 ° C | 18.4 ° C | % 65 | 18.4 km/h | 0% |
| 27 May 2026 Wed | Patchy rain nearby |
16.9 ° C | 21.6 ° C | 18.7 ° C | % 77 | 24.1 km/h | 0% |
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