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

Weather in Williston, South Carolina

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

Williston, SC
Sunday, May 17 at 1:46 AM
72
°
Overcast
Feels like
73°
Humidity
70%
Wind
8 mph
Sunrise
6:24 AM
Sunset
8:19 PM
Williston, SC
Hour by hour · 24h
67°
9p
63°
10p
60°
11p
58°
12a
57°
1a
55°
2a
53°
3a
51°
4a
50°
5a
48°
6a
48°
7a
54°
8a
58°
9a
62°
10a
64°
11a
67°
12p
70°
1p
73°
2p
75°
3p
77°
4p
77°
5p
77°
6p
76°
7p
71°
8p
L 48°H 77°
Williston, SC
7-day forecast
  1. Today
    May 16
    Overcast
    86°51°
  2. Sunday
    May 17
    Foggy
    91°66°
  3. Monday
    May 18
    Overcast
    92°66°
  4. Tuesday
    May 19
    Overcast
    91°63°
  5. Wednesday
    May 20
    Overcast
    11%
    92°65°
  6. Thursday
    May 21
    Overcast
    46%
    94°67°
  7. Friday
    May 22
    Light Drizzle
    67%
    90°66°
Williston, SC
Anemometer · 24h winds · from true
NESW
From · True
SE
136° · backing 84°
Direction
SE
136°
Sustained
8
mph
Gust
17
mph
Peak 24h
18
avg 5
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 5 · pk 18 @ 12:00a
−24h−18h−12h−6hnow
Light breeze backing 84° from the se.
Williston, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1006.4
-0.1 mb in 3h · falling · 29.72 inHg
Now
1006.4
mb
3h
-0.1
mb
12h
-2.4
mb
24h
-0.5
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10041010
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Williston, SC
Air quality
71
AQI
Moderate
PM 2.5
11.5 μg/m³
PM 10
13.9 μg/m³
NO₂
3.8 μg/m³
Ozone
91.0 μg/m³
UV Index
0.0 Low
Williston, SC
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:58 AM
Sunrise
6:24 AM
Daylight
13h 55m
Sunset
8:19 PM
Civil dusk
12:48 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Williston, SC
The moon
New Moon
0% illuminated
Moonrise
10:37 AM
Moonset
12:41 AM
In sign
♉︎ Taurus
Williston, 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 →

Williston at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: March 7 (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 Williston

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.