Was the forecast right for Berlin on Thu Sep 24?
Berlin, State of Berlin · daily high temperature in °C · forecasts from each model's archived runs, verified against the EDDB observations
14 days out, 4 models put Berlin's Thu Sep 24 high anywhere from 14° to 21°;by the final call, the day before, the field had settled to a median of 15°. The day verified at 17° against the EDDB observations, with 3.8 mm of precipitation — drizzle.
UKMO landed closest, off by 0.8°. AIGFS ran 3° cool.
What every model said, at every lead
Daily-high calls for Thu Sep 24 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 · 2026-09-09 | — | 24° | — | — | 22° | — | — | 22–24° |
| 14d · 2026-09-10 | 17° | 16° | 21° | — | 14° | — | — | 14–21° |
| 13d · 2026-09-11 | 17° | 17° | 13° | — | 18° | — | — | 13–18° |
| 12d · 2026-09-12 | 15° | 20° | 18° | — | 21° | — | — | 15–21° |
| 11d · 2026-09-13 | 16° | 14° | 20° | — | 17° | — | — | 14–20° |
| 10d · 2026-09-14 | 15° | 16° | 19° | — | 21° | — | — | 15–21° |
| 9d · 2026-09-15 | 17° | 16° | 19° | 18° | 13° | — | — | 13–19° |
| 8d · 2026-09-16 | 15° | 16° | 18° | 19° | 18° | — | — | 15–19° |
| 7d · 2026-09-17 | 19° | 17° | 17° | 17° | 12° | — | — | 12–19° |
| 6d · 2026-09-18 | 19° | 17° | 19° | 18° | 19° | 20° | 18° | 17–20° |
| 5d · 2026-09-19 | 19° | 15° | 18° | 19° | 16° | 20° | 17° | 15–20° |
| 4d · 2026-09-20 | 15° | 17° | 16° | 18° | 19° | 19° | 18° | 15–19° |
| 3d · 2026-09-21 | 15° | 17° | 16° | 18° | 16° | 15° | 20° | 15–20° |
| 2d · 2026-09-22 | 15° | 16° | 15° | 15° | 15° | 14° | 18° | 14–18° |
| 1d · 2026-09-23 | 15° | 14° | 16° | 15° | 15° | 14° | 16° | 14–16° |
| actual | 17° |
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.