Was the forecast right for Miami on Tue Sep 29?
Miami, Florida · daily high temperature in °F · forecasts from each model's archived runs, verified against the MIA observations
14 days out, 4 models put Miami's Tue Sep 29 high anywhere from 82° to 90°;by the final call, the day before, the field had settled to a median of 82°. The day verified at 85° against the MIA observations, with 0.65 in of precipitation — thunderstorms.
UKMO landed closest, off by 1.5°. AIFS ran 5° cool.
What every model said, at every lead
Daily-high calls for Tue Sep 29 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 Miami scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-14 | — | 87° | — | — | 90° | — | — | 87–90° |
| 14d · 2026-09-15 | 86° | 88° | 82° | — | 90° | — | — | 82–90° |
| 13d · 2026-09-16 | 86° | 85° | 79° | — | 84° | — | — | 79–86° |
| 12d · 2026-09-17 | 81° | 88° | 85° | — | 82° | — | — | 81–88° |
| 11d · 2026-09-18 | 85° | 85° | 83° | — | 91° | — | — | 83–91° |
| 10d · 2026-09-19 | 81° | 88° | 83° | — | 91° | — | — | 81–91° |
| 9d · 2026-09-20 | 81° | 88° | 86° | 84° | 85° | — | — | 81–88° |
| 8d · 2026-09-21 | 80° | 86° | 85° | 85° | 91° | — | — | 80–91° |
| 7d · 2026-09-22 | 84° | 86° | 83° | 84° | 90° | — | — | 83–90° |
| 6d · 2026-09-23 | 81° | 86° | 86° | 81° | 88° | 86° | 85° | 81–88° |
| 5d · 2026-09-24 | 81° | 85° | 82° | 87° | 88° | 86° | 86° | 81–88° |
| 4d · 2026-09-25 | 80° | 86° | 83° | 84° | 89° | 84° | 87° | 80–89° |
| 3d · 2026-09-26 | 80° | 83° | 82° | 87° | 89° | 80° | 84° | 80–89° |
| 2d · 2026-09-27 | 80° | 82° | 82° | 84° | 90° | 82° | 83° | 80–90° |
| 1d · 2026-09-28 | 80° | 82° | 82° | 83° | 83° | 81° | 84° | 80–84° |
| actual | 85° |
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 Miami — 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 MIA observations. The actual values are the ones in hand when this receipt was settled, usually 2 days after the date; a correction published after that is not carried into it. Archive depth varies by city; receipts exist only for dates the archive watched arrive.