Was the forecast right for Denver on Sat Oct 24?
Denver, Colorado · daily high temperature in °F · forecasts from each model's archived runs, verified against the DEN observations
14 days out, 4 models put Denver's Sat Oct 24 high anywhere from 58° to 70°;by the final call, the day before, the field had settled to a median of 57°. The day verified at 57° against the DEN observations — drizzle.
UKMO landed closest, off by 0.2°. ECMWF ran 3° warm.
What every model said, at every lead
Daily-high calls for Sat Oct 24 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 Denver scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-10-09 | — | 51° | — | — | 57° | — | — | 51–57° |
| 14d · 2026-10-10 | 58° | 70° | 61° | — | 70° | — | — | 58–70° |
| 13d · 2026-10-11 | 54° | 34° | 61° | — | 67° | — | — | 34–67° |
| 12d · 2026-10-12 | — | 55° | 57° | — | 44° | — | — | 44–57° |
| 11d · 2026-10-13 | 53° | 59° | 65° | — | 61° | — | — | 53–65° |
| 10d · 2026-10-14 | 44° | 37° | 73° | — | 38° | — | — | 37–73° |
| 9d · 2026-10-15 | 53° | 56° | 56° | 58° | 45° | — | — | 45–58° |
| 8d · 2026-10-16 | 53° | 42° | 56° | 61° | 50° | — | — | 42–61° |
| 7d · 2026-10-17 | 63° | 62° | 62° | 60° | 47° | — | — | 47–63° |
| 6d · 2026-10-18 | 63° | 59° | 58° | 58° | 59° | 55° | 57° | 55–63° |
| 5d · 2026-10-19 | 57° | 58° | 59° | 61° | 62° | 68° | 62° | 57–68° |
| 4d · 2026-10-20 | 57° | 56° | 58° | 60° | 62° | 57° | 55° | 55–62° |
| 3d · 2026-10-21 | 57° | 56° | 58° | 54° | 58° | 55° | 58° | 54–58° |
| 2d · 2026-10-22 | 57° | 57° | 59° | 55° | 57° | 56° | 56° | 55–59° |
| 1d · 2026-10-23 | 58° | 58° | 60° | 55° | 56° | 57° | 57° | 55–60° |
| actual | 57° |
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 Denver — 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 DEN 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.