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

Weather in Marlborough, Massachusetts

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

Marlborough, MA
Sunday, May 17 at 1:31 AM
64
°
Clear
Feels like
58°
Humidity
48%
Wind
13 mph
Sunrise
5:23 AM
Sunset
8:01 PM
Marlborough, MA
Hour by hour · 24h
53°
35%
9p
52°
11%
10p
50°
11p
50°
12a
49°
1a
48°
2a
48°
3a
49°
4a
49°
5a
49°
6a
49°
7a
52°
8a
52°
9a
53°
10a
55°
11a
54°
12p
53°
1p
52°
2p
53°
11%
3p
53°
4p
52°
5p
52°
6p
53°
7p
52°
8p
L 48°H 55°
Marlborough, MA
7-day forecast
  1. Today
    May 16
    Foggy
    78°44°
  2. Sunday
    May 17
    Overcast
    12%
    84°60°
  3. Monday
    May 18
    Overcast
    77°57°
  4. Tuesday
    May 19
    Showers
    13%
    93°59°
  5. Wednesday
    May 20
    Showers
    66%
    90°54°
  6. Thursday
    May 21
    Overcast
    16%
    66°49°
  7. Friday
    May 22
    Overcast
    69°44°
Marlborough, MA
Anemometer · 24h winds · from true
NESW
From · True
SSW
198° · steady
Direction
SSW
198°
Sustained
13
mph
Gust
29
mph
Peak 24h
30
avg 10
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 10 · pk 30 @ 9:00p
−24h−18h−12h−6hnow
Sustained 13 mph with gusts pulsing to 29 — flags snap, branches bend.
Marlborough, MA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
996.7
-0.1 mb in 3h · falling · 29.43 inHg
Now
996.7
mb
3h
-0.1
mb
12h
-2.8
mb
24h
-2.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 9951002
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Marlborough, MA
Air quality
70
AQI
Moderate
PM 2.5
9.8 μg/m³
PM 10
11.7 μg/m³
NO₂
5.8 μg/m³
Ozone
110.0 μg/m³
UV Index
0.0 Low
Marlborough, MA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
8:52 AM
Sunrise
5:23 AM
Daylight
14h 38m
Sunset
8:01 PM
Civil dusk
12:34 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Marlborough, MA
The moon
New Moon
0% illuminated
Moonrise
9:24 AM
Moonset
12:30 AM
In sign
♉︎ Taurus
Marlborough, 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 →

Marlborough at a glance

  • Today vs. normal: 5°F below the seasonal normal for this latitude
  • Last frost: April 30 (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 Marlborough

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.