The table below gives the MAXIMUM heat index forecast for days 3 through 7 at WASHINGTON_DC.
| SAT | SUN | MON | TUE | WED | |
|---|---|---|---|---|---|
| MAY 17 | MAY 18 | MAY 19 | MAY 20 | MAY 21 | |
| MAXIMUM HEAT INDEX | 87 F | 80 F | 77 F | 77 F | 79 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 | 3 % | 0 % | 1 % | 1 % | 4 % |
| 95 F | 12 % | 1 % | 3 % | 3 % | 9 % |
| 90 F | 33 % | 7 % | 8 % | 9 % | 18 % |
| 85 F | 62 % | 24 % | 20 % | 20 % | 31 % |
| 80 F | 86 % | 53 % | 38 % | 37 % | 47 % |