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

Harleyville, South Carolina Weather

Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Harleyville weather forecast — hour by hour, 7-day outlook, NOAA radar

Harleyville, SC
Sunday, July 5 at 8:04 AM
80
°
Clear
Feels like
89°
Humidity
84%
Wind
3 mph
Sunrise
2:18 AM
Sunset
4:34 PM
Harleyville, SC
Hour by hour · 24h
24-Hour ForecastHarleyville, SC: 24-hour forecast. Temperatures range from 77 to 99 degrees Fahrenheit with a 37% chance of precipitation at 3 PM.
L 77°H 99°
Harleyville, SC
7-day forecast
  1. Today
    Jul 5
    Light Showers
    37%
    0.07″
    99°73°
  2. Monday
    Jul 6
    Overcast
    31%
    98°77°-1°
  3. Tuesday
    Jul 7
    Drizzle
    36%
    98°75°
  4. Wednesday
    Jul 8
    Drizzle
    21%
    99°78°+1°
  5. Thursday
    Jul 9
    Light Drizzle
    24%
    99°78°
  6. Friday
    Jul 10
    Overcast
    19%
    102°76°+3°
  7. Saturday
    Jul 11
    Overcast
    41%
    103°78°+1°
Harleyville, SC
Anemometer · 24h winds · from true
NESW
From · True
SSE
159° · backing 58°
Direction
SSE
159°
Sustained
3
mph
Gust
7
mph
Peak 24h
21
avg 5
Beaufort · 1 · LIGHT AIR
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 21 @ 10:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 224SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 58° from the sse.
Harleyville, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1012.3
+0.4 mb in 3h · steady · 29.89 inHg
Now
1012.3
mb
3h
+0.4
mb
12h
+1.9
mb
24h
-2.6
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10101015
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1014.91010.21012.3
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Harleyville, SC
Air quality
23
AQI
Good
-9 in 6hPeak ~37 @ 6 PM

AQI 23 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM2.5 at 5.5 µg/m³ (AQI 31) with a 0.82 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.

PM 2.5DRIVERGood
5.5μg/m³
PM 10Good
7μg/m³
NO₂Good
3μg/m³
OzoneGood
58μg/m³
UV IndexLow
0.8

What's driving it

PM × Wind × Precip

PM2.5 at 5.5 µg/m³ (AQI 31) with a 0.82 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.82
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Harleyville, SC
Sky cover · visibility · 24h
Cloud cover
2%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
31.4mi
UNLIMITED
108 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
12:04 UTC · Harleyville, SC · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
12:04 UTC · Harleyville, SC · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Harleyville, SC
Satellite · infrared · animated
Harleyville, SC
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Harleyville, SC
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:50 AM
Sunrise
2:18 AM
Daylight
14h 16m
Sunset
4:34 PM
Civil dusk
9:04 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Harleyville, SC
The moon
Waning Gibbous
73% illuminated
Moonrise
11:35 PM
Moonset
11:34 AM
In sign
♓︎ Pisces
Harleyville, SC
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Harleyville at a glance

  • Today vs. normal: 80°F — typical for the season
  • Last frost: March 6 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 29448

16-Day Forecast — Harleyville

  1. Sun99°73°37%
  2. Mon98°77°31%
  3. Tue98°75°36%
  4. Wed99°78°21%
  5. Thu99°78°24%
  6. Fri102°76°19%
  7. Sat103°78°41%
  8. Sun103°74°44%
  9. Mon99°76°41%
  10. Tue96°72°27%
  11. Wed107°69°18%
  12. Thu88°73°50%
  13. Fri79°73°47%
  14. Sat90°72°58%
  15. Sun100°75°34%
  16. Mon98°78°39%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, 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.

SPC Convective Outlook

Storm Prediction Center — Harleyville

SPC includes Harleyville in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Harleyville

  • 29448

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.