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

Rockville, South Carolina Weather

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

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

Rockville, SC
Sunday, July 5 at 7:19 AM
81
°
Clear
Feels like
91°
Humidity
87%
Wind
3 mph
Sunrise
2:18 AM
Sunset
4:32 PM
Rockville, SC
Hour by hour · 24h
24-Hour ForecastRockville, SC: 24-hour forecast. Temperatures range from 79 to 92 degrees Fahrenheit with a 20% chance of precipitation at 4 PM.
L 79°H 92°
Rockville, SC
7-day forecast
  1. Today
    Jul 5
    Overcast
    20%
    92°79°
  2. Monday
    Jul 6
    Overcast
    11%
    92°79°
  3. Tuesday
    Jul 7
    T-storm w/ Hail
    28%
    0.02″
    93°78°+1°
  4. Wednesday
    Jul 8
    Thunderstorm
    28%
    93°78°
  5. Thursday
    Jul 9
    Thunderstorm
    13%
    96°78°+3°
  6. Friday
    Jul 10
    Partly Cloudy
    16%
    94°79°-2°
  7. Saturday
    Jul 11
    Partly Cloudy
    38%
    94°80°
Rockville, SC
Anemometer · 24h winds · from true
NESW
From · True
SW
228° · backing 103°
Direction
SW
228°
Sustained
3
mph
Gust
12
mph
Peak 24h
18
avg 6
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 6 · pk 18 @ 10:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 265SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 103° from the sw.
Rockville, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1013.3
+0.3 mb in 3h · steady · 29.92 inHg
Now
1013.3
mb
3h
+0.3
mb
12h
-0.3
mb
24h
-3.2
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10131017
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1016.81013.01013.3
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Rockville, SC
Air quality
24
AQI
Good
-4 in 6hPeak ~39 @ 5 PM

AQI 24 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.80 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 5 PM.

PM 2.5DRIVERGood
6.7μg/m³
PM 10Good
8μg/m³
NO₂Good
5μg/m³
OzoneModerate
65μg/m³
UV IndexLow
0.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 31 now. With UV 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 around 1 PM.

Present
AQI 31
UV peak
0.3 at 1 PM
Sky at peak
clear
Projected peak
AQI 7

PM × Wind × Precip

PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.80 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.80
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Rockville, SC
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
30.2mi
UNLIMITED
58 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
11:19 UTC · Rockville, 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
11:19 UTC · Rockville, SC · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Rockville, SC
Satellite · infrared · animated
Rockville, SC
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Rockville, SC
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:51 AM
Sunrise
2:18 AM
Daylight
14h 14m
Sunset
4:32 PM
Civil dusk
9:01 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Rockville, SC
The moon
Waning Gibbous
73% illuminated
Moonrise
11:33 PM
Moonset
11:33 AM
In sign
♓︎ Pisces
Rockville, SC
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Rockville at a glance

  • Today vs. normal: 81°F — typical for the season
  • Last frost: March 3 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

15-Day Forecast — Rockville

  1. Sun92°79°20%
  2. Mon92°79°11%
  3. Tue93°78°28%
  4. Wed93°78°28%
  5. Thu96°78°13%
  6. Fri94°79°16%
  7. Sat94°80°38%
  8. Sun95°78°40%
  9. Mon88°74°36%
  10. Tue87°70°28%
  11. Wed88°74°22%
  12. Thu90°73°56%
  13. Fri87°73°45%
  14. Sat84°75°59%
  15. Sun88°75°48%

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 — Rockville

SPC includes Rockville 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 Rockville

  • 29487

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.