The Spread

Was the forecast right for Tampa on Sat Sep 5?

Tampa, Florida · daily high temperature in °F · forecasts from each model's archived runs, verified against the TPA observations

11 days out, 4 models put Tampa's Sat Sep 5 high anywhere from 88° to 98°; by the final call the field had settled to a median of 92°. The day verified at 91° against the TPA observations — drizzle.

AIGFS landed closest, off by 0.1°. GFS ran 3° hot.

11 days out the models said 88–98; it hit 91. AIGFS led (off 0.1°F); GFS ran 3°F hot.
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 Sat Sep 5 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 Tampa scoreboard shows them, labelled.

Lead AIFSAIGFSECMWFGEMGFSICONUKMO Range
11d · 2026-08-25 90° 95° 88° 98° 88–98°
10d · 2026-08-26 92° 92° 88° 95° 88–95°
9d · 2026-08-27 91° 94° 89° 93° 89–94°
8d · 2026-08-28 85° 92° 89° 90° 97° 85–97°
7d · 2026-08-29 84° 83° 88° 85° 92° 83–92°
6d · 2026-08-30 89° 89° 88° 90° 93° 96° 88–96°
5d · 2026-08-31 88° 91° 89° 89° 95° 95° 87° 87–95°
4d · 2026-09-01 88° 91° 88° 91° 94° 90° 89° 88–94°
3d · 2026-09-02 88° 90° 87° 92° 92° 90° 90° 87–92°
2d · 2026-09-03 89° 91° 89° 93° 94° 92° 90° 89–94°
1d · 2026-09-04 90° 91° 88° 93° 94° 92° 94° 88–94°
0d · 2026-09-05 93° 91° 90° 92° 94° 91° 92° 90–94°
actual 91°

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 Tampa — 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 TPA observations. Archive depth varies by city; receipts exist only for dates the archive watched arrive.