The table below gives the MEAN heat index forecast for days 3 through 7 at CHARLESTON_SC.
| FRI | SAT | SUN | MON | TUE | |
|---|---|---|---|---|---|
| JUL 17 | JUL 18 | JUL 19 | JUL 20 | JUL 21 | |
| MEAN HEAT INDEX | 94 F | 94 F | 94 F | 95 F | 96 F |
| PROBABILITY OF MEAN HEAT INDEX EXCEEDING: | |||||
| 100 F | 5 % | 8 % | 14 % | 18 % | 24 % |
| 95 F | 40 % | 39 % | 42 % | 46 % | 53 % |
| 90 F | 87 % | 79 % | 75 % | 78 % | 81 % |
| 85 F | 99 % | 97 % | 94 % | 95 % | 95 % |
| 80 F | 100 % | 100 % | 99 % | 99 % | 99 % |
| 75 F | 100 % | 100 % | 100 % | 100 % | 100 % |
| 70 F | 100 % | 100 % | 100 % | 100 % | 100 % |