Was the forecast right for Los Angeles on Mon Oct 19?
Los Angeles, California · daily high temperature in °F · forecasts from each model's archived runs, verified against the FHMC1 observations
14 days out, 4 models put Los Angeles's Mon Oct 19 high anywhere from 81° to 94°;by the final call, the day before, the field had settled to a median of 84°. The day verified at 86° against the FHMC1 observations — clear.
ECMWF landed closest, off by 0.4°. AIGFS ran 8° cool.
What every model said, at every lead
Daily-high calls for Mon Oct 19 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 Los Angeles scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-10-04 | — | 86° | — | — | 96° | — | — | 86–96° |
| 14d · 2026-10-05 | 88° | 81° | 91° | — | 94° | — | — | 81–94° |
| 13d · 2026-10-06 | 75° | 86° | 81° | — | 84° | — | — | 75–86° |
| 12d · 2026-10-07 | 85° | 80° | 84° | — | 86° | — | — | 80–86° |
| 11d · 2026-10-08 | 77° | 81° | 90° | — | 86° | — | — | 77–90° |
| 10d · 2026-10-09 | 84° | 76° | 82° | — | 80° | — | — | 76–84° |
| 9d · 2026-10-10 | 82° | 89° | 86° | 91° | 91° | — | — | 82–91° |
| 8d · 2026-10-11 | 77° | 79° | 83° | 87° | 84° | — | — | 77–87° |
| 7d · 2026-10-12 | — | 78° | 90° | 93° | 81° | — | — | 78–93° |
| 6d · 2026-10-13 | 78° | 80° | 76° | 90° | 88° | 86° | 81° | 76–90° |
| 5d · 2026-10-14 | 80° | 78° | 85° | 86° | 84° | 84° | 85° | 78–86° |
| 4d · 2026-10-15 | 79° | 76° | 84° | 86° | 83° | 84° | 84° | 76–86° |
| 3d · 2026-10-16 | 79° | 76° | 85° | 87° | 83° | 84° | 82° | 76–87° |
| 2d · 2026-10-17 | 81° | 78° | 87° | 87° | 83° | 85° | 84° | 78–87° |
| 1d · 2026-10-18 | 81° | 78° | 86° | 88° | 84° | 86° | 82° | 78–88° |
| actual | 86° |
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 Los Angeles — 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 FHMC1 observations. The actual values are the ones in hand when this receipt was settled, usually 4 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.