Was the forecast right for Minneapolis on Sat Aug 8?
Minneapolis, Minnesota · daily high temperature in °F · forecasts from each model's archived runs, verified against ERA5
12 days out, 4 models put Minneapolis's Sat Aug 8 high anywhere from 75° to 100°; by the final call the field had settled to a median of 83°. ERA5 says the day verified at 83° — partly cloudy.
AIGFS landed closest, off by 0.1°. GEM ran 4° hot.
What every model said, at every lead
Daily-high calls for Sat Aug 8 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 Minneapolis scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 12d · 2026-07-27 | 84° | 75° | 89° | — | 100° | — | — | 75–100° |
| 11d · 2026-07-28 | 80° | 81° | 91° | — | 117° | — | — | 80–117° |
| 10d · 2026-07-29 | 83° | 76° | 89° | — | 90° | — | — | 76–90° |
| 9d · 2026-07-30 | 81° | 76° | 89° | — | 83° | — | — | 76–89° |
| 8d · 2026-07-31 | 82° | 81° | 92° | 70° | 95° | — | — | 70–95° |
| 7d · 2026-08-01 | 82° | 79° | 85° | 75° | 73° | — | — | 73–85° |
| 6d · 2026-08-02 | 86° | 78° | 92° | 83° | 95° | 87° | — | 78–95° |
| 5d · 2026-08-03 | 80° | 80° | 94° | 83° | 102° | 84° | 88° | 80–102° |
| 4d · 2026-08-04 | 82° | 82° | 86° | 81° | 86° | 81° | 85° | 81–86° |
| 3d · 2026-08-05 | 82° | 82° | 85° | 82° | 97° | 84° | 83° | 82–97° |
| 2d · 2026-08-06 | 83° | 82° | 87° | 85° | 92° | 84° | 84° | 82–92° |
| 1d · 2026-08-07 | 82° | 81° | 84° | 87° | 82° | 84° | 83° | 81–87° |
| 0d · 2026-08-08 | 82° | 83° | 83° | 87° | 84° | 82° | 83° | 82–87° |
| actual | 83° |
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 Minneapolis — 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 ERA5 reanalysis (temperature_2m_max). Archive depth varies by city; receipts exist only for dates the archive watched arrive.