Was the forecast right for Milan on Sun Sep 27?
Milan, Lombardy · daily high temperature in °F · forecasts from each model's archived runs, verified against the LIML observations
14 days out, 4 models put Milan's Sun Sep 27 high anywhere from 67° to 74°;by the final call, the day before, the field had settled to a median of 77°. The day verified at 78° against the LIML observations — clear.
GFS landed closest, off by 0.6°. AIFS ran 2° cool.
What every model said, at every lead
Daily-high calls for Sun Sep 27 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 Milan scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-12 | — | 81° | — | — | 75° | — | — | 75–81° |
| 14d · 2026-09-13 | 70° | 69° | 74° | — | 67° | — | — | 67–74° |
| 13d · 2026-09-14 | 74° | 81° | 73° | — | 84° | — | — | 73–84° |
| 12d · 2026-09-15 | 77° | 66° | 73° | — | 67° | — | — | 66–77° |
| 11d · 2026-09-16 | 68° | 71° | 76° | — | 63° | — | — | 63–76° |
| 10d · 2026-09-17 | 72° | 62° | 77° | — | 76° | — | — | 62–77° |
| 9d · 2026-09-18 | 72° | 65° | 81° | 76° | 74° | — | — | 65–81° |
| 8d · 2026-09-19 | 73° | 67° | 74° | 77° | 75° | — | — | 67–77° |
| 7d · 2026-09-20 | 75° | 74° | 77° | 78° | 79° | — | — | 74–79° |
| 6d · 2026-09-21 | 76° | 75° | 77° | 80° | 77° | 78° | 76° | 75–80° |
| 5d · 2026-09-22 | 75° | 75° | 76° | 79° | 75° | 79° | 76° | 75–79° |
| 4d · 2026-09-23 | 75° | 76° | 76° | 78° | 77° | 77° | 75° | 75–78° |
| 3d · 2026-09-24 | 75° | 76° | 77° | 78° | 78° | 78° | 76° | 75–78° |
| 2d · 2026-09-25 | 75° | 77° | 76° | 77° | 78° | 77° | 76° | 75–78° |
| 1d · 2026-09-26 | 76° | 77° | 77° | 77° | 78° | 77° | 77° | 76–78° |
| actual | 78° |
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 Milan — 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 LIML 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.