Waterloo, South Carolina Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Waterloo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast11%—86°68°—
- TuesdayJun 16Light Drizzle16%0.02″82°68°-4°
- WednesdayJun 17Heavy Rain47%0.92″85°69°+3°
- ThursdayJun 18Overcast63%—89°70°+4°
- FridayJun 19Light Showers64%0.06″80°69°-9°
- SaturdayJun 20Overcast31%—85°67°+5°
- SundayJun 21Overcast——91°65°+6°
AQI 38 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 55 — peak already passed at 1 PM under partly cloudy skies. 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 55 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 55
- UV peak
- 7.3 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 55
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
- 6:22 AM
- Moonset
- 8:52 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Waterloo at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 13 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Waterloo
- Mon86°68°11%
- Tue82°67°16%
- Wed85°69°47%
- Thu89°70°63%
- Fri80°69°64%
- Sat85°67°31%
- Sun91°65°7%
- Mon94°68°24%
- Tue99°73°32%
- Wed93°68°27%
- Thu88°69°27%
- Fri89°70°44%
- Sat92°68°55%
- Sun92°69°45%
- Mon90°70°52%
- Tue85°70°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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
- 29384