Weather in Union, South Carolina
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
Union, SC
Sunday, May 17 at 3:47 AM
67
°
Overcast
Feels like
67°
Humidity
69%
Wind
4 mph
Sunrise
6:22 AM
Sunset
8:23 PM
Union, SC
Hour by hour · 24h
56°
11p
54°
12a
52°
1a
50°
2a
48°
3a
46°
4a
45°
5a
43°
6a
43°
7a
50°
8a
57°
9a
62°
10a
64°
11a
67°
12p
69°
1p
71°
2p
72°
3p
73°
4p
74°
5p
74°
6p
72°
7p
70°
8p
63°
9p
61°
10p
Union, SC
7-day forecast
- TodayMay 16Overcast—82°51°
- SundayMay 17Overcast—90°63°
- MondayMay 18Mostly Clear—92°67°
- TuesdayMay 19Overcast—92°60°
- WednesdayMay 20Overcast16%93°64°
- ThursdayMay 21Showers77%90°65°
- FridayMay 22Drizzle77%76°66°
Union, SC
Next 24 hours · Cool now
Union, SC
Anemometer · 24h winds · from true
From · True
ESE
102° · backing 12°
Direction
ESE
102°
Sustained
4
mph
Gust
5
mph
Peak 24h
15
avg 5
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
−24h−18h−12h−6hnow
Union, SC
Air quality
66
AQI
Moderate
- PM 2.5
- 18.2 μg/m³
- PM 10
- 19.4 μg/m³
- NO₂
- 5.4 μg/m³
- Ozone
- 83.0 μg/m³
- UV Index
- 0.0 Low
Union, SC
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:56 AM
Sunrise
6:22 AM
Daylight
14h 01m
Sunset
8:23 PM
Civil dusk
12:52 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Union, SC
The moon
New Moon
0% illuminated
- Moonrise
- 10:33 AM
- Moonset
- 12:46 AM
- In sign
- ♊︎ Gemini
Union, SC
Microseason · 28 of 72
May 16–20
Roses open on the Piedmont edge
insect
Union at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: March 15 (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.