The table below gives the MEAN heat index forecast for days 3 through 7 at GRAND_RAPIDS_MI.
| SUN | MON | TUE | WED | THU | |
|---|---|---|---|---|---|
| AUG 24 | AUG 25 | AUG 26 | AUG 27 | AUG 28 | |
| MEAN HEAT INDEX | 71 F | 65 F | 69 F | 71 F | 74 F |
| PROBABILITY OF MEAN HEAT INDEX EXCEEDING: | |||||
| 100 F | 0 % | 0 % | 0 % | 0 % | 0 % |
| 95 F | 0 % | 0 % | 0 % | 0 % | 0 % |
| 90 F | 0 % | 0 % | 0 % | 0 % | 0 % |
| 85 F | 0 % | 0 % | 1 % | 1 % | 1 % |
| 80 F | 0 % | 0 % | 5 % | 5 % | 11 % |
| 75 F | 5 % | 1 % | 18 % | 23 % | 40 % |
| 70 F | 66 % | 13 % | 43 % | 56 % | 77 % |