Was the forecast right for Minneapolis on Fri Sep 18?
Minneapolis, Minnesota · daily high temperature in °F · forecasts from each model's archived runs, verified against the MSP observations
13 days out, 4 models put Minneapolis's Fri Sep 18 high anywhere from 64° to 82°; by the final call the field had settled to a median of 62°. The day verified at 63° against the MSP observations, with 0.89 in of precipitation — showers.
GFS landed closest, off by 0.2°. AIGFS ran 4° cold.
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 Minneapolis scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-03 | — | 83° | — | — | 64° | — | — | 64–83° |
| 14d · 2026-09-04 | 69° | 66° | — | — | 67° | — | — | 66–69° |
| 13d · 2026-09-05 | 77° | 64° | 70° | — | 82° | — | — | 64–82° |
| 12d · 2026-09-06 | 66° | 58° | 62° | — | 77° | — | — | 58–77° |
| 11d · 2026-09-07 | 74° | 64° | 69° | — | 75° | — | — | 64–75° |
| 10d · 2026-09-08 | 66° | 59° | 62° | — | 65° | — | — | 59–66° |
| 9d · 2026-09-09 | 64° | 66° | 67° | — | 84° | — | — | 64–84° |
| 8d · 2026-09-10 | 68° | 72° | 69° | 72° | 82° | — | — | 68–82° |
| 7d · 2026-09-11 | 75° | 76° | 74° | 73° | 66° | — | — | 66–76° |
| 6d · 2026-09-12 | 72° | 73° | 62° | 70° | 76° | 71° | — | 62–76° |
| 5d · 2026-09-13 | 71° | 70° | 67° | 69° | 66° | 66° | 74° | 66–74° |
| 4d · 2026-09-14 | 70° | 61° | 69° | 71° | 68° | 70° | 74° | 61–74° |
| 3d · 2026-09-15 | 65° | 60° | 64° | 64° | 69° | 64° | 71° | 60–71° |
| 2d · 2026-09-16 | 63° | 61° | 63° | 68° | 70° | 63° | 71° | 61–71° |
| 1d · 2026-09-17 | 62° | 58° | 62° | 62° | 64° | 63° | 70° | 58–70° |
| 0d · 2026-09-18 | 62° | 59° | 62° | 62° | 63° | 61° | 66° | 59–66° |
| actual | 63° |
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 the MSP observations. Archive depth varies by city; receipts exist only for dates the archive watched arrive.