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Was the forecast right for Oklahoma City on Tue Sep 1?

Oklahoma City, Oklahoma · daily high temperature in °C · forecasts from each model's archived runs, verified against the OKC observations

13 days out, 4 models put Oklahoma City's Tue Sep 1 high anywhere from 35° to 42°;by the final call, the day before, the field had settled to a median of 38°. The day verified at 38° against the OKC observations — cloudy.

ECMWF landed closest, off by 0.2°. GFS ran 2° warm.

13 days out the models said 35–42; it hit 38. ECMWF led (off 0.2°C); GFS ran 2°C warm.
The shareable card for this receipt — what this page looks like pasted into a thread.

What every model said, at every lead

Daily-high calls for Tue Sep 1 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 Oklahoma City scoreboard shows them, labelled.

Lead AIFSAIGFSECMWFGEMGFSICONUKMO Range
13d · 2026-08-19 35° 36° 35° — 42° — — 35–42°
12d · 2026-08-20 39° 38° 39° — 42° — — 38–42°
11d · 2026-08-21 37° 39° 41° — 42° — — 37–42°
10d · 2026-08-22 38° 38° 40° — 41° — — 38–41°
9d · 2026-08-23 38° 37° 40° 39° 43° — — 37–43°
8d · 2026-08-24 38° 38° 38° 37° 40° — — 37–40°
7d · 2026-08-25 38° 38° 38° 37° 41° 38° — 37–41°
6d · 2026-08-26 38° 37° 39° 37° 41° 38° 37° 37–41°
5d · 2026-08-27 38° 38° 40° 37° 39° 38° 37° 37–40°
4d · 2026-08-28 38° 37° 39° 38° 38° 38° 37° 37–39°
3d · 2026-08-29 38° 37° 38° 37° 41° 37° 37° 37–41°
2d · 2026-08-30 38° 37° 38° 37° 41° 37° 37° 37–41°
1d · 2026-08-31 38° 38° 38° 38° 40° 38° 37° 37–40°
actual 38°

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 Oklahoma City — 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 OKC 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.