WEATHER PROPSBOARDMATCHUPSMODELSSTATIONSREPLAYTHE LEAGUE
daily prop · Chicago, IL · Great Lakes & Upper Midwest · settles Tue Oct 20

Chicago high ≥ 69°F · Tue Oct 20

51¢
american -106 · decimal 1.94
on the tape
The line is the official NWS forecast at open. Settles on the ACIS official NWS daily record.
Canonical settlement condition: High ≥ 69°F. The original listing above is retained as published. Open the model matchup dashboard →

The Tape

what the models knew, when
0¢25¢50¢75¢100¢10/0510/1410/19 06:00
— — reconstructed from archived model runs (deterministic values + a lead-dependent Gaussian error model, labeled, never on the tape) · — live prices from the running consensus engine.

Who's Bullish

each model's own price
aifs
75¢
wn2
73¢
nbm
59¢
ndfd
55¢
eps
44¢
hres
30¢
icon
17¢

The Ladder

where the whole distribution sits
60–61°F1¢
62–63°F4¢
64–65°F14¢
66–67°F28¢
68–69°F30¢
70–71°F17¢
72–73°F5¢
74–75°F1¢
calibration receipt: lead 1, scored on 14,459 settled station-days, consensus CRPS 1.516 vs climatology 8.861.

Receipts

prop id WP-KORD-20261020-TMAX-GE69 · opened 2026-10-13T11:50:36+00:00 · minted to the append-only hash-chained tape at open; the settle writes next to the mint · inspect the tape