Was the forecast right for St. Louis on Tue Oct 13?
St. Louis, Missouri · daily high temperature in °F · forecasts from each model's archived runs, verified against the STL observations
14 days out, 4 models put St. Louis's Tue Oct 13 high anywhere from 60° to 75°;by the final call, the day before, the field had settled to a median of 93°. The day verified at 93° against the STL observations — cloudy.
ECMWF landed closest, off by 0.0°. UKMO ran 3° cool.
What every model said, at every lead
Daily-high calls for Tue Oct 13 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 St. Louis scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-28 | — | 67° | — | — | 80° | — | — | 67–80° |
| 14d · 2026-09-29 | 61° | 69° | 60° | — | 75° | — | — | 60–75° |
| 13d · 2026-09-30 | 51° | 65° | 80° | — | 67° | — | — | 51–80° |
| 12d · 2026-10-01 | 59° | 58° | 81° | — | 77° | — | — | 58–81° |
| 11d · 2026-10-02 | 62° | 60° | 86° | — | 81° | — | — | 60–86° |
| 10d · 2026-10-03 | 75° | 69° | 66° | — | 83° | — | — | 66–83° |
| 9d · 2026-10-04 | 78° | 57° | 82° | 80° | 87° | — | — | 57–87° |
| 8d · 2026-10-05 | 87° | 79° | 85° | 80° | 89° | — | — | 79–89° |
| 7d · 2026-10-06 | 79° | 82° | 85° | 86° | 90° | — | — | 79–90° |
| 6d · 2026-10-07 | 79° | 78° | 73° | 92° | 80° | 76° | 79° | 73–92° |
| 5d · 2026-10-08 | 87° | 88° | 88° | 95° | 94° | 90° | 89° | 87–95° |
| 4d · 2026-10-09 | 89° | 88° | 92° | 97° | 89° | 92° | 88° | 88–97° |
| 3d · 2026-10-10 | 90° | 90° | 92° | 93° | 94° | 92° | 89° | 89–94° |
| 2d · 2026-10-11 | 90° | 88° | 92° | 94° | 95° | 94° | 90° | 88–95° |
| 1d · 2026-10-12 | — | 90° | 93° | 93° | 95° | 93° | 90° | 90–95° |
| actual | 93° |
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 St. Louis — 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 STL 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.