Was the forecast right for Tampa on Mon Aug 31?
Tampa, Florida · daily high temperature in °F · forecasts from each model's archived runs, verified against the TPA observations
6 days out, 6 models put Tampa's Mon Aug 31 high anywhere from 89° to 97°; by the final call the field had settled to a median of 92°. The day verified at 91° against the TPA observations — thunderstorms.
ICON landed closest, off by 0.1°. GFS ran 5° hot.
What every model said, at every lead
Daily-high calls for Mon Aug 31 as each model's runs approached it — the last archived run per day. NBM and The Spread's own blend are consensus products and stay out of these ranges and rankings; the Tampa scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 6d · 2026-08-25 | 89° | 94° | 89° | 93° | 97° | 91° | — | 89–97° |
| 5d · 2026-08-26 | 90° | 93° | 89° | 89° | 96° | 90° | 95° | 89–96° |
| 4d · 2026-08-27 | 90° | 91° | 88° | 92° | 98° | 93° | 96° | 88–98° |
| 3d · 2026-08-28 | 90° | 93° | 89° | 91° | 93° | 92° | 95° | 89–95° |
| 2d · 2026-08-29 | 89° | 92° | 87° | 93° | 96° | 93° | 90° | 87–96° |
| 1d · 2026-08-30 | 90° | 92° | 88° | 92° | 96° | 92° | 92° | 88–96° |
| 0d · 2026-08-31 | 90° | 93° | 89° | 92° | 96° | 91° | 92° | 89–96° |
| actual | 91° |
Read it honestly
This is one date, not a league table. A model can win a day it deserved to lose; rankings only mean something over a window. For that, see which model has been most accurate in Tampa — or every city The Spread scores.
Forecasts are what each model's archived runs said at the time, captured at The Spread's sweep times — never reconstructed after the fact. Truth is the TPA observations. Archive depth varies by city; receipts exist only for dates the archive watched arrive.