Williston, South Carolina Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Williston weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Partly Cloudy——83°54°—
- FridayJun 5Overcast——87°60°+4°
- SaturdayJun 6Overcast——90°64°+3°
- SundayJun 7Overcast——90°66°0°
- MondayJun 8Overcast18%—91°68°+1°
- TuesdayJun 9Light Drizzle34%—76°66°-15°
- WednesdayJun 10Overcast23%—84°65°+8°
Ozone at AQI 86 now. AQI flat over the last 6 hours (within ±4 points). With UV 8.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 97 by mid-afternoon.
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 86 now. With UV 8.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 97 by mid-afternoon.
- Present
- AQI 86
- UV peak
- 8.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 97
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
- 3:34 AM
- Moonset
- 1:45 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Williston at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: March 7 (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.