The table below gives the MAXIMUM heat index forecast for days 3 through 7 at PORTLAND_ME.
| MON | TUE | WED | THU | FRI | |
|---|---|---|---|---|---|
| AUG 17 | AUG 18 | AUG 19 | AUG 20 | AUG 21 | |
| MAXIMUM HEAT INDEX | 74 F | 78 F | 78 F | 80 F | 81 F |
| PROBABILITY OF MAXIMUM HEAT INDEX EXCEEDING: | |||||
| 115 F | 0 % | 0 % | 0 % | 0 % | 0 % |
| 110 F | 0 % | 0 % | 0 % | 0 % | 0 % |
| 105 F | 0 % | 0 % | 0 % | 0 % | 1 % |
| 100 F | 0 % | 0 % | 0 % | 0 % | 3 % |
| 95 F | 1 % | 1 % | 2 % | 1 % | 9 % |
| 90 F | 3 % | 5 % | 7 % | 6 % | 18 % |
| 85 F | 10 % | 16 % | 18 % | 20 % | 33 % |
| 80 F | 22 % | 36 % | 37 % | 46 % | 51 % |