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

Weather in Somerville, New Jersey

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

Somerville, NJ
Sunday, May 17 at 4:53 AM
69
°
Overcast
Feels like
66°
Humidity
50%
Wind
6 mph
Sunrise
5:39 AM
Sunset
8:10 PM
Somerville, NJ
Hour by hour · 24h
51°
12a
52°
1a
50°
2a
51°
3a
50°
4a
50°
5a
50°
6a
51°
7a
54°
8a
56°
9a
60°
10a
61°
11a
60°
12p
63°
1p
64°
2p
66°
3p
67°
4p
66°
5p
66°
6p
66°
7p
64°
8p
60°
9p
57°
10p
55°
11p
L 50°H 67°
Somerville, NJ
7-day forecast
  1. Today
    May 17
    Overcast
    91°62°
  2. Monday
    May 18
    Light Showers
    12%
    91°66°
  3. Tuesday
    May 19
    Overcast
    92°67°
  4. Wednesday
    May 20
    Light Drizzle
    67%
    89°60°
  5. Thursday
    May 21
    Overcast
    26%
    77°52°
  6. Friday
    May 22
    Light Drizzle
    24%
    62°49°
  7. Saturday
    May 23
    Light Drizzle
    29%
    55°49°
Somerville, NJ
Anemometer · 24h winds · from true
NESW
From · True
SW
222° · backing 66°
Direction
SW
222°
Sustained
6
mph
Gust
12
mph
Peak 24h
26
avg 7
Beaufort · 2 · LIGHT 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 7 · pk 26 @ 8:00p
−24h−18h−12h−6hnow
Light breeze backing 66° from the sw.
Somerville, NJ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1010.1
-0.2 mb in 3h · rising · 29.83 inHg
Now
1010.1
mb
3h
-0.2
mb
12h
-1.5
mb
24h
-5.4
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10101017
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Somerville, NJ
Air quality
72
AQI
Moderate
PM 2.5
10.9 μg/m³
PM 10
11.1 μg/m³
NO₂
10.7 μg/m³
Ozone
96.0 μg/m³
UV Index
0.0 Low
Somerville, NJ
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:11 AM
Sunrise
5:39 AM
Daylight
14h 31m
Sunset
8:10 PM
Civil dusk
12:41 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Somerville, NJ
The moon
New Moon
0% illuminated
Moonrise
9:44 AM
Moonset
12:36 AM
In sign
♊︎ Gemini
Somerville, NJ
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 →

Somerville at a glance

  • Today vs. normal: 69°F — typical for the season
  • Last frost: April 19 (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

Warm-season window is open

As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

ZIP codes in Somerville

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.