Mount Pleasant, South Carolina Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Mount Pleasant weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Foggy——83°58°—
- FridayJun 5Overcast——85°61°+2°
- SaturdayJun 6Overcast——85°64°0°
- SundayJun 7Overcast——85°70°0°
- MondayJun 8Drizzle——88°71°+3°
- TuesdayJun 9Drizzle21%—77°71°-11°
- WednesdayJun 10Partly Cloudy——79°69°+2°
Ozone at AQI 83 — peak already passed at 1 PM under clear skies. AQI up 44 in the last 6 hours — air quality is degrading. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 83 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 83
- UV peak
- 1.0 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 83
PM × Wind × Precip
PM2.5 at 7.0 µg/m³, PM10 at 9.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:26 AM
- Moonset
- 1:39 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Mount Pleasant at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: March 4 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, 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.