For 5/7/2025
[ The forecast is updated daily by 3:30 pm EDT. ]
As of Tuesday afternoon, most forecast zones around the state are seeing hourly ground level ozone concentrations right around the code GREEN to code YELLOW threshold. Our weather pattern begins to shift on Wednesday, as cloud cover increases and the possibility of scattered showers and thunderstorms working their way across South Carolina during the day. With lower solar insolation, ozone concentrations should also be held in check. All forecast zones should see their ozone peaks in code GREEN on Wednesday.
| County * |
Color Code |
AQI |
| Abbeville |
Good (Green) |
36 |
| Aiken |
Good (Green) |
36 |
| Anderson |
Good (Green) |
36 |
| Barnwell |
Good (Green) |
36 |
| Berkeley |
Good (Green) |
44 |
| Calhoun |
Good (Green) |
40 |
| Charleston |
Good (Green) |
44 |
| Cherokee |
Good (Green) |
36 |
| Chester |
Good (Green) |
36 |
| Chesterfield |
Good (Green) |
42 |
| Darlington |
Good (Green) |
42 |
| Dillon |
Good (Green) |
42 |
| Dorchester |
Good (Green) |
44 |
| Edgefield |
Good (Green) |
36 |
| Fairfield |
Good (Green) |
40 |
| Florence |
Good (Green) |
42 |
| Greenville |
Good (Green) |
36 |
| Greenwood |
Good (Green) |
36 |
| Kershaw |
Good (Green) |
40 |
| Lancaster |
Good (Green) |
36 |
| Laurens |
Good (Green) |
36 |
| Lee |
Good (Green) |
42 |
| Lexington |
Good (Green) |
40 |
| Marlboro |
Good (Green) |
42 |
| McCormick |
Good (Green) |
36 |
| Newberry |
Good (Green) |
40 |
| Oconee |
Good (Green) |
36 |
| Pickens |
Good (Green) |
36 |
| Richland |
Good (Green) |
40 |
| Saluda |
Good (Green) |
40 |
| Spartanburg |
Good (Green) |
36 |
| Sumter |
Good (Green) |
40 |
| Union |
Good (Green) |
36 |
| York |
Good (Green) |
36 |
| GA-Columbia |
Good (Green) |
36 |
| GA-Richmond |
Good (Green) |
36 |
| * Ozone forecasts are not issued for counties not listed in this table.
|
| AQI Color Code (Value) |
Cautionary Statement |
|
Good
(0-50)
|
No health effects are expected.
|
|
Moderate
(51-100)
|
Unusually sensitive people should consider limiting prolonged outdoor exertion.
|
|
Unhealthy for Sensitive Groups
(101-150)
|
The following groups should limit prolonged outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
|
|
Unhealthy
(151-200)
|
The following groups should avoid prolonged outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
Everyone else should limit prolonged outdoor exertion.
|
|
Very Unhealthy
(200+)
|
The following groups should avoid all outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
Everyone else should limit outdoor exertion.
|
