Was the forecast right for New York on Fri Sep 18?
New York, New York · daily high temperature in °F · forecasts from each model's archived runs, verified against the NYC observations
13 days out, 4 models put New York's Fri Sep 18 high anywhere from 67° to 81°; by the final call the field had settled to a median of 82°. The day verified at 80° against the NYC observations — cloudy.
ICON landed closest, off by 0.8°. GFS ran 5° hot.
What every model said, at every lead
Daily-high calls for Fri Sep 18 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 New York scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-03 | — | 76° | — | — | 71° | — | — | 71–76° |
| 14d · 2026-09-04 | 65° | 77° | — | — | 75° | — | — | 65–77° |
| 13d · 2026-09-05 | 79° | 68° | 81° | — | 67° | — | — | 67–81° |
| 12d · 2026-09-06 | 80° | 81° | 74° | — | 76° | — | — | 74–81° |
| 11d · 2026-09-07 | 75° | 68° | 77° | — | 71° | — | — | 68–77° |
| 10d · 2026-09-08 | 88° | 85° | 69° | — | 77° | — | — | 69–88° |
| 9d · 2026-09-09 | 86° | 84° | 75° | — | 81° | — | — | 75–86° |
| 8d · 2026-09-10 | 84° | 77° | 72° | 71° | 76° | — | — | 71–84° |
| 7d · 2026-09-11 | 77° | 75° | 76° | 74° | 85° | — | — | 74–85° |
| 6d · 2026-09-12 | 75° | 82° | 88° | 80° | 78° | 75° | — | 75–88° |
| 5d · 2026-09-13 | 78° | 70° | 80° | 81° | 77° | 75° | 74° | 70–81° |
| 4d · 2026-09-14 | 79° | 77° | 83° | 82° | 87° | 78° | 83° | 77–87° |
| 3d · 2026-09-15 | 81° | 82° | 80° | 81° | 85° | 79° | 81° | 79–85° |
| 2d · 2026-09-16 | 80° | 82° | 81° | 78° | 85° | 79° | 81° | 78–85° |
| 1d · 2026-09-17 | 81° | 81° | 81° | 81° | 84° | 80° | 79° | 79–84° |
| 0d · 2026-09-18 | 83° | 82° | 81° | 82° | 85° | 81° | 82° | 81–85° |
| actual | 80° |
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 New York — 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 NYC observations. Archive depth varies by city; receipts exist only for dates the archive watched arrive.