Nantucket IslandNDBC-NTKM3
At a river or reservoir gauge/4.2 mi away/-/- ft from here
temp, wind, gust, humidity, pressure
Beaches/Massachusetts/Low Beach
Coming up. Rain is likely tomorrow morning, from about 9 AM, the chance peaking at 55% around 11 AM.
Now. Low Beach is 67° and overcast at 4 PM. The dew point is 65°, so the air feels humid and sticky. Moderate breeze from the south-southwest at 18 mph.
Today and tonight. The warmest of the day has passed; it cools to about 64° by 8 PM. Tonight falls to about 51° by 7 AM, under cloud.
The week. The warmest day ahead is Thursday, near 60°, and the coolest tomorrow, near 54°. Rain is likely tomorrow (92%), Monday (52%) and Tuesday (52%). Rain is possible Thursday (43%). The windiest day is Wednesday, with wind to 23 mph.
The sky tonight. The sun sets at 5:59 PM. The Moon is a waxing crescent, 33% lit, and sets at 9:48 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. Cloud is forecast to cover most of the night, so the sky will be hard to see. The day is 11 hours 7 minutes long, 3 minutes shorter than yesterday.
As of 4:00 PM in Low Beach, Massachusetts.
Air quality
Index 27, good, led by ozone. Read at 4 PM from its reporting area, Cape Cod and Islands (MA), 25 miles off.
Good each day through Tue Oct 20, led by fine particles. Yesterday measured 30, good.
Little smoke near the ground through Sun 8 AM: the index from smoke stays at 6 or under.
Precipitation
0.09 in in the last 24 hours, and none in the 2 days before, to Fri 3 PM. Measured by radar and rain gauges, as water.
Visibility
Dense fog: visibility falls to 0 miles Fri 11 PM, under a mile for 7 hours.
F
Now, today, and the week
Facing WNW 285°
From above: the edge, the break, the view
Rip current risk today: moderate
The flag in the picture is the colour of the forecast's risk (green low, yellow moderate, red high), not a flag raised on the beach.
A rip current is a narrow stream of water running out from the shore through the surf, often where fewer waves break. Caught in one, swim across it, along the shore, then back in.
The surf zone forecast for Nantucket MA, and the waves at buoy 44020, 16.2 mi away.
Wave height is the significant height: the mean of the highest third of the waves. The period is the time between the waves carrying the most energy.
| Time | Wave height | Period | From |
|---|---|---|---|
| Fri 4:20 PM | 2.3 ft | 4 s | SSW (201°) |
| Fri 3:50 PM | 2.6 ft | 4 s | S (185°) |
| Fri 2:50 PM | 2.3 ft | 3 s | S (174°) |
| Fri 1:50 PM | 1.6 ft | 3 s | SE (146°) |
| Fri 12:50 PM | 2.0 ft | 4 s | SSE (153°) |
| Fri 11:50 AM | 2.3 ft | - | SSE (153°) |
| Fri 10:50 AM | 2.6 ft | 4 s | SE (131°) |
| Fri 9:50 AM | 3.0 ft | 4 s | SSE (147°) |
| Fri 8:50 AM | 2.6 ft | 4 s | SE (141°) |
| Fri 7:50 AM | 2.3 ft | 4 s | SE (134°) |
| Fri 6:50 AM | 2.3 ft | 3 s | SSE (151°) |
| Fri 5:50 AM | 2.3 ft | 3 s | SSE (156°) |
| Fri 4:50 AM | 2.0 ft | 3 s | SSE (164°) |
| Fri 3:50 AM | 2.0 ft | 3 s | SSE (153°) |
| Fri 2:50 AM | 1.6 ft | 3 s | SE (138°) |
| Fri 1:50 AM | 1.3 ft | 3 s | SE (133°) |
| Fri 12:50 AM | 1.0 ft | 3 s | SE (127°) |
| Thu 11:50 PM | 0.7 ft | - | - |
| Thu 10:50 PM | 0.7 ft | - | - |
| Thu 9:50 PM | 0.7 ft | - | - |
| Thu 8:50 PM | 0.7 ft | - | - |
| Thu 7:50 PM | 1.0 ft | 3 s | ESE (114°) |
| Thu 6:50 PM | 1.0 ft | 4 s | E (96°) |
| Thu 5:50 PM | 1.0 ft | 3 s | NNE (21°) |
Nantucket MA, including Nantucket. Issued 4:11 PM EDT Fri Oct 16.
| Forecast | Rest of today | Saturday |
|---|---|---|
| Rip current risk | East Coast ModerateSouth Coast Moderate | East Coast HighSouth Coast High |
| Surf height | East Coast Around 6 feetSouth Coast Around 6 feet | East Coast 5 to 7 feetSouth Coast 5 to 7 feet |
| Water temperature | East Coast In the upper 50sSouth Coast In the lower 60s | - |
| UV index | Low | - |
| Thunderstorm potential | None | None |
| Weather | Cloudy. Patchy fog. A slight chance of showers | Mostly cloudy. Showers likely |
| High temperature | In the upper 60s | In the lower 50s |
| Winds | Southwest winds around 20 mph | Breezy. North winds 20 to 25 mph |
| Tides | NantucketHigh 3.4 ft, 4:49 PMGreat PointHigh 3.0 ft, 4:29 PM | NantucketLow 1.0 ft, 11:07 AMHigh 3.3 ft, 5:40 PMGreat PointLow 0.8 ft, 10:52 AMHigh 2.9 ft, 5:20 PM |
The 6 instruments nearest Low Beach, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.1 miles away.
measured now4 instruments
Nantucket IslandNDBC-NTKM3
At a river or reservoir gauge/4.2 mi away/-/- ft from here
temp, wind, gust, humidity, pressure
At an airfield/6.2 mi away/49 ft/- ft from here
temp, wind, gust, visibility, precip, pressure
Citizen station DW0935DW0935
In a volunteer observer's own ground/11.2 mi away/82 ft/- ft from here
temp, humidity, wind, precip, pressure
Barnstable Tourist Info CenterMA023
Beside a road/28.9 mi away/101 ft/- ft from here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Nantucket 3.8 WNWMA-NT-1
In a volunteer observer's own ground/1.1 mi away/14 ft/- ft from here
precip, snowfall, snow depth
Nantucket ASOSACKM3
At a cooperative observer's station/4.3 mi away/23 ft/- ft from here
snowfall, snow depth, precip, high, low
-
Snow on the ground
17 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.