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

Weather in Stony Brook, New York

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

Stony Brook, NY
Sunday, May 17 at 4:02 AM
61
°
Partly Cloudy
Feels like
56°
Humidity
61%
Wind
12 mph
Sunrise
5:32 AM
Sunset
8:05 PM
Stony Brook, NY
Hour by hour · 24h
52°
12a
51°
1a
51°
2a
50°
3a
50°
4a
50°
5a
49°
6a
52°
7a
53°
8a
56°
9a
57°
10a
61°
11a
62°
12p
63°
1p
63°
2p
64°
3p
65°
4p
65°
5p
64°
6p
64°
7p
60°
8p
59°
9p
56°
10p
55°
11p
L 49°H 65°
Stony Brook, NY
7-day forecast
  1. Today
    May 17
    Overcast
    87°61°
  2. Monday
    May 18
    Light Drizzle
    83°60°
  3. Tuesday
    May 19
    Light Drizzle
    86°61°
  4. Wednesday
    May 20
    Light Showers
    72%
    87°61°
  5. Thursday
    May 21
    Overcast
    40%
    68°55°
  6. Friday
    May 22
    Drizzle
    18%
    61°48°
  7. Saturday
    May 23
    Light Drizzle
    28%
    53°48°
Stony Brook, NY
Anemometer · 24h winds · from true
NESW
From · True
SSW
195° · veering 7°
Direction
SSW
195°
Sustained
12
mph
Gust
23
mph
Peak 24h
35
avg 11
Beaufort · 3 · GENTLE 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 35 @ 9:00p
−24h−18h−12h−6hnow
Light breeze veering 7° from the ssw.
Stony Brook, NY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1006.7
-0.8 mb in 3h · rising · 29.73 inHg
Now
1006.7
mb
3h
-0.8
mb
12h
-2.3
mb
24h
-5.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10071014
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
Stony Brook, NY
Air quality
58
AQI
Moderate
PM 2.5
15.1 μg/m³
PM 10
20.7 μg/m³
NO₂
7.0 μg/m³
Ozone
107.0 μg/m³
UV Index
0.0 Low
Stony Brook, NY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:04 AM
Sunrise
5:32 AM
Daylight
14h 33m
Sunset
8:05 PM
Civil dusk
12:36 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Stony Brook, NY
The moon
New Moon
0% illuminated
Moonrise
9:36 AM
Moonset
12:31 AM
In sign
♊︎ Gemini
Stony Brook, NY
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 →

Stony Brook at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: April 21 (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 Stony Brook

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.