Current conditions at
Nantucket, Nantucket Memorial Airport (KACK)
Lat: 41.25°NLon: 70.06°WElev: 46ft.
Overcast
45°F
7°C
| Humidity | 93% |
| Wind Speed | SW 10 mph |
| Barometer | 29.79 in (1008.8 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 7.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 22 Mar 3:53 pm EDT |
Extended Forecast for
3 Miles NNE Siasconset MA
This Afternoon

High: 45 °F
Rain and
Patchy FogTonight

Low: 40 °F
Rain and
Patchy FogMonday
High: 40 °F
Breezy. Rain
then Showers
LikelyMonday Night

Low: 35 °F
Chance
Rain/Snow and
BreezyTuesday

High: 39 °F
Mostly Sunny
Tuesday Night

Low: 37 °F
Partly Cloudy
Wednesday

High: 44 °F
Partly Sunny
Wednesday Night

Low: 40 °F
Mostly Cloudy
Thursday

High: 48 °F
Partly Sunny
Detailed Forecast
This Afternoon
Rain. Patchy fog. High near 45. Breezy, with a south wind 18 to 20 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Patchy fog before 11pm. Low around 40. Southwest wind 9 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain before 11am, then showers likely, mainly between 11am and 1pm. High near 40. Breezy, with a north wind 22 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain and snow showers before midnight, then a chance of rain showers between midnight and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 35. Breezy, with a north wind 14 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 39. North wind 6 to 14 mph.
Tuesday Night
Partly cloudy, with a low around 37. Southwest wind 9 to 15 mph.
Wednesday
Partly sunny, with a high near 44. Southwest wind 15 to 18 mph.
Wednesday Night
Mostly cloudy, with a low around 40. Southwest wind around 15 mph.
Thursday
Partly sunny, with a high near 48. South wind 11 to 13 mph.
Thursday Night
A chance of rain after 11pm. Cloudy, with a low around 41. Windy, with a southwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Chance of precipitation is 50%.
Friday
A chance of rain. Mostly cloudy, with a high near 47. Breezy, with a southwest wind 17 to 25 mph becoming north in the afternoon. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 29. Blustery, with a north wind 16 to 20 mph.
Saturday
Mostly sunny, with a high near 36. North wind 9 to 14 mph.
Saturday Night
Partly cloudy, with a low around 31. West wind 9 to 11 mph.
Sunday
Mostly sunny, with a high near 42.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Siasconset MA
41.33°N 69.98°W (Elev. 0 ft)
41.33°N 69.98°W (Elev. 0 ft)
3:45 pm EDT Mar 22, 2026
4pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026


