Was the forecast right for Houston on Thu Aug 27?
Houston, Texas · daily high temperature in °F · forecasts from each model's archived runs, verified against the HOU observations
5 days out, 7 models put Houston's Thu Aug 27 high anywhere from 94° to 103°; by the final call the field had settled to a median of 97°. The day verified at 97° against the HOU observations — thunderstorms.
AIGFS landed closest, off by 0.4°. GFS ran 6° hot.
What every model said, at every lead
Daily-high calls for Thu Aug 27 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 Houston scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 5d · 2026-08-22 | 94° | 100° | 102° | 103° | 99° | 102° | 97° | 94–103° |
| 4d · 2026-08-23 | 94° | 101° | 98° | 100° | 102° | 101° | 98° | 94–102° |
| 3d · 2026-08-24 | 97° | 99° | 98° | 100° | 103° | 95° | 98° | 95–103° |
| 2d · 2026-08-25 | 94° | 97° | 100° | 101° | 102° | 98° | 98° | 94–102° |
| 1d · 2026-08-26 | 92° | 97° | 91° | 99° | 105° | 94° | 97° | 91–105° |
| 0d · 2026-08-27 | 91° | 97° | 93° | 99° | 103° | 94° | 99° | 91–103° |
| actual | 97° |
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 Houston — 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 HOU observations. Archive depth varies by city; receipts exist only for dates the archive watched arrive.