Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Green Harbor, Massachusetts

Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →

Green Harbor, MA
Sunday, May 17 at 5:09 AM
59
°
Clear
Feels like
52°
Humidity
60%
Wind
13 mph
Sunrise
5:19 AM
Sunset
7:58 PM
Green Harbor, MA
Hour by hour · 24h
51°
1a
52°
2a
51°
3a
51°
4a
51°
5a
51°
6a
51°
7a
52°
8a
51°
9a
53°
10a
55°
11a
54°
12p
54°
1p
52°
2p
51°
3p
52°
4p
51°
5p
51°
6p
52°
7p
50°
8p
51°
9p
48°
10p
47°
11p
45°
12a
L 45°H 55°
Green Harbor, MA
7-day forecast
  1. Today
    May 17
    Light Drizzle
    14%
    87°59°
  2. Monday
    May 18
    Heavy Drizzle
    68°54°
  3. Tuesday
    May 19
    Drizzle
    11%
    94°57°
  4. Wednesday
    May 20
    Rain
    67%
    94°61°
  5. Thursday
    May 21
    Overcast
    31%
    62°49°
  6. Friday
    May 22
    Overcast
    66°49°
  7. Saturday
    May 23
    Drizzle
    17%
    51°49°
Green Harbor, MA
Anemometer · 24h winds · from true
NESW
From · True
SSW
210° · steady
Direction
SSW
210°
Sustained
13
mph
Gust
27
mph
Peak 24h
30
avg 12
Beaufort · 4 · MOD BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 12 · pk 30 @ 8:00p
−24h−18h−12h−6hnow
Sustained 13 mph with gusts pulsing to 27 — flags snap, branches bend.
Green Harbor, MA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.9
-0.3 mb in 3h · rising · 29.88 inHg
Now
1011.9
mb
3h
-0.3
mb
12h
-0.9
mb
24h
-5.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10121019
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Green Harbor, MA
Air quality
56
AQI
Moderate
PM 2.5
12.3 μg/m³
PM 10
18.0 μg/m³
NO₂
2.2 μg/m³
Ozone
109.0 μg/m³
UV Index
0.0 Low
Green Harbor, MA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
8:49 AM
Sunrise
5:19 AM
Daylight
14h 39m
Sunset
7:58 PM
Civil dusk
12:31 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Green Harbor, MA
The moon
New Moon
0% illuminated
Moonrise
9:21 AM
Moonset
12:25 AM
In sign
♊︎ Gemini
Green Harbor, MA
Microseason · 28 of 72
May 16–20

Roses open along the stoops

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Green Harbor at a glance

  • Today vs. normal: 11°F below the seasonal normal for this latitude
  • Last frost: April 28 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Green Harbor

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.