Was the forecast right for Charlotte on Sat Aug 29?
Charlotte, North Carolina · daily high temperature in °F · forecasts from each model's archived runs, verified against the CLT observations
8 days out, 5 models put Charlotte's Sat Aug 29 high anywhere from 82° to 93°;by the final call, the day before, the field had settled to a median of 84°. The day verified at 88° against the CLT observations, with 0.14 in of precipitation — drizzle.
ICON landed closest, off by 2.1°. UKMO ran 9° cool.
What every model said, at every lead
Daily-high calls for Sat Aug 29 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 Charlotte scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 8d · 2026-08-21 | 83° | 90° | 88° | 82° | 93° | — | — | 82–93° |
| 7d · 2026-08-22 | 85° | 86° | 88° | 82° | 90° | — | — | 82–90° |
| 6d · 2026-08-23 | 84° | 88° | 84° | 77° | 94° | 88° | 86° | 77–94° |
| 5d · 2026-08-24 | 83° | 83° | 88° | 77° | 80° | 91° | 86° | 77–91° |
| 4d · 2026-08-25 | 83° | 82° | 84° | 78° | 84° | 80° | 81° | 78–84° |
| 3d · 2026-08-26 | 81° | 83° | 84° | 77° | 89° | 88° | 80° | 77–89° |
| 2d · 2026-08-27 | 81° | 81° | 83° | 83° | 87° | 79° | 77° | 77–87° |
| 1d · 2026-08-28 | 83° | 83° | 84° | 84° | 85° | 86° | 79° | 79–86° |
| 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 Charlotte — 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 CLT 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.