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

Weather in Port Jefferson, Ohio

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Port Jefferson, OH
Sunday, May 17 at 2:35 AM
65
°
Partly Cloudy
Feels like
67°
Humidity
89%
Wind
5 mph
Sunrise
6:18 AM
Sunset
8:46 PM
Port Jefferson, OH
Hour by hour · 24h
52°
10p
50°
11p
47°
12a
45°
1a
44°
2a
43°
3a
43°
4a
42°
5a
42°
6a
41°
7a
46°
8a
54°
9a
58°
10a
62°
11a
65°
12p
65°
1p
66°
11%
2p
65°
3p
65°
4p
65°
5p
65°
6p
64°
7p
63°
8p
61°
9p
L 41°H 66°
Port Jefferson, OH
7-day forecast
  1. Today
    May 16
    Drizzle
    50%
    75°55°
  2. Sunday
    May 17
    Light Rain
    19%
    82°60°
  3. Monday
    May 18
    Drizzle
    16%
    86°62°
  4. Tuesday
    May 19
    Light Drizzle
    71%
    81°68°
  5. Wednesday
    May 20
    Light Showers
    72%
    67°53°
  6. Thursday
    May 21
    Overcast
    11%
    63°45°
  7. Friday
    May 22
    Light Drizzle
    24%
    61°51°
Port Jefferson, OH
Anemometer · 24h winds · from true
NESW
From · True
SSW
202° · veering 26°
Direction
SSW
202°
Sustained
5
mph
Gust
12
mph
Peak 24h
33
avg 12
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 12 · pk 33 @ 1:00p
−24h−18h−12h−6hnow
Light breeze veering 26° from the ssw.
Port Jefferson, OH
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
980.5
-0.2 mb in 3h · falling · 28.95 inHg
Now
980.5
mb
3h
-0.2
mb
12h
+1.0
mb
24h
+2.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 977981
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Port Jefferson, OH
Air quality
44
AQI
Good
PM 2.5
4.7 μg/m³
PM 10
5.0 μg/m³
NO₂
5.9 μg/m³
Ozone
76.0 μg/m³
UV Index
0.0 Low
Port Jefferson, OH
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:49 AM
Sunrise
6:18 AM
Daylight
14h 28m
Sunset
8:46 PM
Civil dusk
1:18 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Port Jefferson, OH
The moon
New Moon
0% illuminated
Moonrise
10:24 AM
Moonset
1:15 AM
In sign
♊︎ Gemini
Port Jefferson, OH
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Port Jefferson at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: April 18 (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 Port Jefferson

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.