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 4:02 AM
62
°
Overcast
Feels like
56°
Humidity
55%
Wind
14 mph
Sunrise
5:22 AM
Sunset
8:02 PM
Marlborough, MA
Hour by hour · 24h
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
50°
9p
48°
10p
46°
11p
L 46°H 55°
Marlborough, MA
7-day forecast
  1. Today
    May 17
    Overcast
    11%
    86°61°
  2. Monday
    May 18
    Overcast
    78°57°
  3. Tuesday
    May 19
    Showers
    20%
    93°59°
  4. Wednesday
    May 20
    Showers
    71%
    90°54°
  5. Thursday
    May 21
    Overcast
    66°49°
  6. Friday
    May 22
    Overcast
    69°44°
  7. Saturday
    May 23
    Drizzle
    15%
    49°47°
Marlborough, MA
Anemometer · 24h winds · from true
NESW
From · True
SSW
195° · backing 14°
Direction
SSW
195°
Sustained
14
mph
Gust
24
mph
Peak 24h
32
avg 11
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 11 · pk 32 @ 9:00p
−24h−18h−12h−6hnow
Sustained 14 mph with gusts pulsing to 24 — flags snap, branches bend.
Marlborough, MA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
994.8
-0.4 mb in 3h · rising · 29.38 inHg
Now
994.8
mb
3h
-0.4
mb
12h
-1.7
mb
24h
-5.1
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
65
AQI
Moderate
PM 2.5
8.9 μg/m³
PM 10
11.5 μg/m³
NO₂
5.9 μg/m³
Ozone
98.0 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
5:22 AM
Daylight
14h 40m
Sunset
8:02 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
♊︎ Gemini
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: 7°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.