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daily prop · Boston, MA · Northeast & Mid-Atlantic · settles Sun Oct 18

Boston high ≥ 50°F · Sun Oct 18

76¢
american -318 · decimal 1.31
on the tape
The line is the official NWS forecast at open. Settles on the ACIS official NWS daily record.
Canonical settlement condition: High ≥ 50°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¢10/0310/1210/18 18:00
— — 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
wn2
90¢
aifs
81¢
nbm
78¢
icon
72¢
eps
63¢
hres
54¢
ndfd
53¢

The Ladder

where the whole distribution sits
48–49°F2¢
50–51°F6¢
52–53°F14¢
54–55°F22¢
56–57°F23¢
58–59°F18¢
60–61°F9¢
62–63°F3¢
64–65°F1¢
calibration receipt: lead 3, scored on 14,203 settled station-days, consensus CRPS 1.906 vs climatology 8.873.

Receipts

prop id WP-KBOS-20261018-TMAX-GE50 · opened 2026-10-12T04:00:46+00:00 · minted to the append-only hash-chained tape at open; the settle writes next to the mint · inspect the tape