Was the forecast right for Los Angeles on Thu Jul 30?
Los Angeles, California · daily high temperature in °C · forecasts from each model's archived runs, verified against the ECMWF IFS analysis
4 days out, 7 models put Los Angeles's Thu Jul 30 high anywhere from 29° to 33°;by the final call, the day before, the field had settled to a median of 30°. The day verified at 33° against the ECMWF IFS analysis — cloudy.
ECMWF landed closest, off by 0.4°. AIGFS ran 7° cool.
What every model said, at every lead
Daily-high calls for Thu Jul 30 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 |
|---|---|---|---|---|---|---|---|---|
| 4d · 2026-07-26 | 30° | 29° | 33° | 33° | 33° | 30° | 31° | 29–33° |
| 3d · 2026-07-27 | 30° | 26° | 34° | 31° | 33° | 30° | 31° | 26–34° |
| 2d · 2026-07-28 | 29° | 26° | 33° | 31° | 32° | 29° | 31° | 26–33° |
| 1d · 2026-07-29 | 29° | 26° | 33° | 30° | 31° | 28° | 32° | 26–33° |
| actual | 33° |
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 ECMWF IFS analysis (temperature_2m_max). 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.