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

Weather in Johnsonville, South Carolina

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

Johnsonville, SC
Sunday, May 17 at 4:53 AM
64
°
Clear
Feels like
63°
Humidity
72%
Wind
5 mph
Sunrise
6:15 AM
Sunset
8:13 PM
Johnsonville, SC
Hour by hour · 24h
61°
12a
58°
1a
55°
2a
53°
3a
51°
4a
48°
5a
45°
6a
45°
7a
52°
8a
58°
9a
63°
10a
66°
11a
69°
12p
72°
1p
74°
2p
76°
3p
77°
4p
79°
5p
78°
6p
78°
7p
72°
8p
68°
9p
62°
10p
58°
11p
L 45°H 79°
Johnsonville, SC
7-day forecast
  1. Today
    May 17
    Overcast
    93°60°
  2. Monday
    May 18
    Overcast
    91°64°
  3. Tuesday
    May 19
    Clear
    90°62°
  4. Wednesday
    May 20
    Overcast
    94°64°
  5. Thursday
    May 21
    Partly Cloudy
    45%
    94°67°
  6. Friday
    May 22
    Overcast
    74%
    86°67°
  7. Saturday
    May 23
    Light Drizzle
    65%
    84°67°
Johnsonville, SC
Anemometer · 24h winds · from true
NESW
From · True
SSE
160° · backing 7°
Direction
SSE
160°
Sustained
5
mph
Gust
15
mph
Peak 24h
16
avg 6
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 6 · pk 16 @ 1:00a
−24h−18h−12h−6hnow
Light breeze backing 7° from the sse.
Johnsonville, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1016.7
+0.1 mb in 3h · steady · 30.02 inHg
Now
1016.7
mb
3h
+0.1
mb
12h
-0.5
mb
24h
-1.1
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10161020
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
Johnsonville, SC
Air quality
49
AQI
Good
PM 2.5
6.5 μg/m³
PM 10
8.9 μg/m³
NO₂
2.0 μg/m³
Ozone
87.0 μg/m³
UV Index
0.0 Low
Johnsonville, SC
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:49 AM
Sunrise
6:15 AM
Daylight
13h 58m
Sunset
8:13 PM
Civil dusk
12:41 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Johnsonville, SC
The moon
New Moon
0% illuminated
Moonrise
10:27 AM
Moonset
12:34 AM
In sign
♊︎ Gemini
Johnsonville, SC
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 →

Johnsonville at a glance

  • Today vs. normal: 14°F below the seasonal normal for this latitude
  • Last frost: March 10 (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

Peak growing season

As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

ZIP codes in Johnsonville

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.