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Weather in Waterloo, South Carolina

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

Waterloo, SC
Sunday, May 17 at 1:47 AM
70
°
Overcast
Feels like
69°
Humidity
57%
Wind
4 mph
Sunrise
6:25 AM
Sunset
8:24 PM
Waterloo, SC
Hour by hour · 24h
64°
9p
61°
10p
58°
11p
56°
12a
54°
1a
52°
2a
50°
3a
49°
4a
47°
5a
45°
6a
45°
7a
50°
8a
56°
9a
60°
10a
63°
11a
66°
12p
69°
1p
70°
2p
73°
3p
74°
4p
74°
5p
74°
6p
72°
7p
70°
8p
L 45°H 74°
Waterloo, SC
7-day forecast
  1. Today
    May 16
    Overcast
    82°52°
  2. Sunday
    May 17
    Overcast
    89°65°
  3. Monday
    May 18
    Mostly Clear
    92°67°
  4. Tuesday
    May 19
    Overcast
    92°60°
  5. Wednesday
    May 20
    Overcast
    13%
    93°64°
  6. Thursday
    May 21
    Light Drizzle
    70%
    94°64°
  7. Friday
    May 22
    Light Drizzle
    70%
    83°67°
Waterloo, SC
Anemometer · 24h winds · from true
NESW
From · True
ESE
103° · backing 23°
Direction
ESE
103°
Sustained
4
mph
Gust
6
mph
Peak 24h
11
avg 3
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 3 · pk 11 @ 10:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Waterloo, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
995.6
0.0 mb in 3h · falling · 29.40 inHg
Now
995.6
mb
3h
0.0
mb
12h
-3.3
mb
24h
-0.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 995999
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Waterloo, SC
Air quality
89
AQI
Moderate
PM 2.5
17.8 μg/m³
PM 10
19.3 μg/m³
NO₂
4.2 μg/m³
Ozone
103.0 μg/m³
UV Index
0.0 Low
Waterloo, SC
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:58 AM
Sunrise
6:25 AM
Daylight
13h 59m
Sunset
8:24 PM
Civil dusk
12:53 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Waterloo, SC
The moon
New Moon
0% illuminated
Moonrise
10:36 AM
Moonset
12:47 AM
In sign
♉︎ Taurus
Waterloo, 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 →

Waterloo at a glance

  • Today vs. normal: 7°F below the seasonal normal for this latitude
  • Last frost: March 13 (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 Waterloo

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.