Was the forecast right for Berlin on Fri Sep 25?
Berlin, State of Berlin · daily high temperature in °F · forecasts from each model's archived runs, verified against the EDDB observations
14 days out, 4 models put Berlin's Fri Sep 25 high anywhere from 55° to 71°;by the final call, the day before, the field had settled to a median of 61°. The day verified at 59° against the EDDB observations, with 0.04 in of precipitation — drizzle.
AIFS landed closest, off by 1.2°. GFS ran 6° warm.
What every model said, at every lead
Daily-high calls for Fri Sep 25 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 Berlin scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-09-10 | — | 62° | — | — | 59° | — | — | 59–62° |
| 14d · 2026-09-11 | 62° | 64° | 55° | — | 71° | — | — | 55–71° |
| 13d · 2026-09-12 | 65° | 66° | 68° | — | 72° | — | — | 65–72° |
| 12d · 2026-09-13 | 60° | 58° | 67° | — | 62° | — | — | 58–67° |
| 11d · 2026-09-14 | 60° | 61° | 68° | — | 78° | — | — | 60–78° |
| 10d · 2026-09-15 | 68° | 63° | 75° | — | 58° | — | — | 58–75° |
| 9d · 2026-09-16 | 62° | 62° | 69° | 66° | 69° | — | — | 62–69° |
| 8d · 2026-09-17 | 66° | 65° | 65° | 66° | 63° | — | — | 63–66° |
| 7d · 2026-09-18 | 60° | 62° | 60° | 60° | 70° | — | — | 60–70° |
| 6d · 2026-09-19 | 65° | 56° | 60° | 63° | 66° | 68° | 64° | 56–68° |
| 5d · 2026-09-20 | 60° | 62° | 62° | 63° | 68° | 64° | 64° | 60–68° |
| 4d · 2026-09-21 | 59° | 61° | 62° | 62° | 66° | 61° | 62° | 59–66° |
| 3d · 2026-09-22 | 59° | 60° | 60° | 59° | 62° | 61° | 58° | 58–62° |
| 2d · 2026-09-23 | 57° | 61° | 59° | 58° | 63° | 61° | 61° | 57–63° |
| 1d · 2026-09-24 | 57° | 62° | 60° | 60° | 64° | 61° | 61° | 57–64° |
| actual | 59° |
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 Berlin — 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 EDDB 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.