Nantucket Memorial Airport (ACK) 15 Day Weather Forecast, Nantucket United States
Current weather conditions and 15 day weather forecast for Nantucket Memorial Airport in Nantucket, 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 ACK
| 14 September 2026 Mon 21.2 ° C ( 70.2°F )  Cloudy |
Feels Like : 17.7 ° C / 63.9°F Humidity : % 85 Pressure : 1012 mb Wind Speed : 33.8 kmph / 21 miles from N 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 73 |
15-day weather forecast for Nantucket Memorial Airport, Nantucket, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 14 September 2026 Mon |  Sunny |
18.9 ° C | 21.2 ° C | 20.1 ° C | % 74 | 38.9 km/h | 44% |
| 15 September 2026 Tue | Sunny |
16.3 ° C | 18.6 ° C | 17.1 ° C | % 66 | 36.4 km/h | 5% |
| 16 September 2026 Wed |  Partly Cloudy |
16 ° C | 19.1 ° C | 17.3 ° C | % 69 | 16.9 km/h | 9% |
| 17 September 2026 Thu | Sunny |
18.2 ° C | 21 ° C | 19.9 ° C | % 76 | 27 km/h | 66% |
| 18 September 2026 Fri |  Patchy rain nearby |
17 ° C | 19.4 ° C | 18.1 ° C | % 83 | 34.6 km/h | 80% |
| 19 September 2026 Sat | Sunny |
16.3 ° C | 17.5 ° C | 17 ° C | % 67 | 41 km/h | 5% |
| 20 September 2026 Sun |  Overcast |
16.2 ° C | 17.3 ° C | 16.6 ° C | % 76 | 21.6 km/h | 50% |
| 21 September 2026 Mon |  Light rain shower |
14.5 ° C | 17.3 ° C | 15.8 ° C | % 82 | 50.8 km/h | 88% |
| 22 September 2026 Tue | Overcast |
15.1 ° C | 16.1 ° C | 15.4 ° C | % 69 | 43.2 km/h | 61% |
| 23 September 2026 Wed |  Moderate or heavy rain shower |
15.5 ° C | 15.9 ° C | 15.7 ° C | % 89 | 70.9 km/h | 92% |
| 24 September 2026 Thu | Light rain shower |
15.2 ° C | 16.1 ° C | 15.5 ° C | % 90 | 76.3 km/h | 92% |
| 25 September 2026 Fri | Sunny |
15.9 ° C | 18.3 ° C | 16.5 ° C | % 66 | 69.8 km/h | 18% |
| 26 September 2026 Sat | Overcast |
18 ° C | 20.5 ° C | 19.1 ° C | % 73 | 33.5 km/h | 13% |
| 27 September 2026 Sun | Partly Cloudy |
19.7 ° C | 20.3 ° C | 20 ° C | % 84 | 29.2 km/h | 15% |
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