Was the forecast right for Buffalo on Mon Aug 17?
Buffalo, New York · daily high temperature in °F · forecasts from each model's archived runs, verified against the ECMWF IFS analysis
13 days out, 4 models put Buffalo's Mon Aug 17 high anywhere from 70° to 74°; by the final call the field had settled to a median of 79°. The ECMWF IFS analysis says the day verified at 80° with 0.08 in of precipitation — drizzle.
UKMO landed closest, off by 0.4°. AIGFS ran 3° cold.
What every model said, at every lead
Daily-high calls for Mon Aug 17 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 Buffalo scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-08-02 | — | 80° | — | — | 82° | — | — | 80–82° |
| 14d · 2026-08-03 | 77° | 73° | — | — | 77° | — | — | 73–77° |
| 13d · 2026-08-04 | 70° | 72° | 74° | — | 70° | — | — | 70–74° |
| 12d · 2026-08-05 | 76° | 72° | 79° | — | 77° | — | — | 72–79° |
| 11d · 2026-08-06 | 76° | 67° | 73° | — | 68° | — | — | 67–76° |
| 10d · 2026-08-07 | 74° | 71° | 67° | — | 79° | — | — | 67–79° |
| 9d · 2026-08-08 | 77° | 77° | 74° | — | 79° | — | — | 74–79° |
| 8d · 2026-08-09 | 77° | 73° | 75° | 68° | 77° | — | — | 68–77° |
| 7d · 2026-08-10 | 79° | 70° | 74° | 75° | 76° | — | — | 70–79° |
| 6d · 2026-08-11 | 79° | 74° | 78° | 78° | 74° | 74° | — | 74–79° |
| 5d · 2026-08-12 | 76° | 72° | 78° | 78° | 79° | 78° | 79° | 72–79° |
| 4d · 2026-08-13 | 75° | 74° | 75° | 75° | 77° | 76° | 81° | 74–81° |
| 3d · 2026-08-14 | 76° | 76° | 76° | 72° | 78° | 81° | 81° | 72–81° |
| 2d · 2026-08-15 | 77° | 75° | 80° | 77° | 81° | 79° | 80° | 75–81° |
| 1d · 2026-08-16 | 77° | 76° | 80° | 77° | 79° | 79° | 80° | 76–80° |
| 0d · 2026-08-17 | 78° | 77° | 79° | 79° | 82° | 79° | 81° | 77–82° |
| 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 Buffalo — 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). Archive depth varies by city; receipts exist only for dates the archive watched arrive.