Was the forecast right for Atlanta on Thu Oct 15?
Atlanta, Georgia · daily high temperature in °F · forecasts from each model's archived runs, verified against the ATL observations
14 days out, 4 models put Atlanta's Thu Oct 15 high anywhere from 64° to 80°;by the final call, the day before, the field had settled to a median of 86°. The day verified at 88° against the ATL observations — clear.
GFS landed closest, off by 0.2°. UKMO ran 5° cool.
What every model said, at every lead
Daily-high calls for Thu Oct 15 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 Atlanta scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-30 | — | 76° | — | — | 75° | — | — | 75–76° |
| 14d · 2026-10-01 | 64° | 67° | 80° | — | 70° | — | — | 64–80° |
| 13d · 2026-10-02 | 76° | 51° | 84° | — | 80° | — | — | 51–84° |
| 12d · 2026-10-03 | 75° | 67° | 76° | — | 78° | — | — | 67–78° |
| 11d · 2026-10-04 | 79° | 60° | 82° | — | 76° | — | — | 60–82° |
| 10d · 2026-10-05 | 80° | 81° | 83° | — | 82° | — | — | 80–83° |
| 9d · 2026-10-06 | 74° | 82° | 84° | — | 87° | — | — | 74–87° |
| 8d · 2026-10-07 | 80° | 86° | 70° | 76° | 82° | — | — | 70–86° |
| 7d · 2026-10-08 | 84° | 82° | 82° | 84° | 88° | — | — | 82–88° |
| 6d · 2026-10-09 | 86° | 85° | 86° | 88° | 90° | 87° | 84° | 84–90° |
| 5d · 2026-10-10 | 84° | 86° | 86° | 87° | 88° | 84° | 82° | 82–88° |
| 4d · 2026-10-11 | 85° | 87° | 86° | 87° | 88° | 83° | 83° | 83–88° |
| 3d · 2026-10-12 | — | 87° | 85° | 88° | 87° | 85° | 83° | 83–88° |
| 2d · 2026-10-13 | 85° | 87° | 86° | 87° | 88° | 86° | 83° | 83–88° |
| 1d · 2026-10-14 | 85° | 89° | 85° | 86° | 88° | 86° | 83° | 83–89° |
| actual | 88° |
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 Atlanta — 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 ATL 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.