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
| 28 July 2026 Tue 23 ° C ( 73.4°F )  Overcast |
Feels Like : 25.3 ° C / 77.5°F Humidity : % 94 Pressure : 1004 mb Wind Speed : 15.8 kmph / 9.8 miles from SSW 
Visibility : 16.1 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 |
|---|---|---|---|---|---|---|---|
| 28 July 2026 Tue |  Partly Cloudy |
20 ° C | 27.5 ° C | 23.4 ° C | % 85 | 26.6 km/h | 62% |
| 29 July 2026 Wed |  Light rain shower |
21.1 ° C | 23.1 ° C | 22 ° C | % 88 | 23.8 km/h | 89% |
| 30 July 2026 Thu | Light rain shower |
19 ° C | 22.2 ° C | 20.3 ° C | % 90 | 22.3 km/h | 90% |
| 31 July 2026 Fri |  Patchy rain nearby |
19.2 ° C | 24.4 ° C | 21.4 ° C | % 82 | 18.4 km/h | 63% |
| 01 August 2026 Sat |  Sunny |
19.2 ° C | 25.5 ° C | 22.6 ° C | % 77 | 14.4 km/h | 15% |
| 02 August 2026 Sun | Sunny |
21.8 ° C | 25.5 ° C | 23.5 ° C | % 78 | 17.6 km/h | 10% |
| 03 August 2026 Mon | Partly Cloudy |
22 ° C | 26.8 ° C | 23.6 ° C | % 86 | 12.2 km/h | 83% |
| 04 August 2026 Tue | Sunny |
21.1 ° C | 28.5 ° C | 24.6 ° C | % 63 | 15.1 km/h | 4% |
| 05 August 2026 Wed | Sunny |
22.5 ° C | 27.6 ° C | 24.7 ° C | % 65 | 17.6 km/h | 4% |
| 06 August 2026 Thu | Sunny |
22.2 ° C | 26.6 ° C | 24.1 ° C | % 72 | 18.7 km/h | 57% |
| 07 August 2026 Fri | Patchy rain nearby |
22.4 ° C | 27.5 ° C | 24.8 ° C | % 79 | 13.7 km/h | 68% |
| 08 August 2026 Sat | Partly Cloudy |
23.4 ° C | 27.7 ° C | 25.4 ° C | % 85 | 18 km/h | 77% |
| 09 August 2026 Sun | Light rain shower |
23.4 ° C | 27.2 ° C | 25 ° C | % 90 | 16.6 km/h | 86% |
| 10 August 2026 Mon | Light rain shower |
21.2 ° C | 25.9 ° C | 23.4 ° C | % 86 | 14.8 km/h | 85% |
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