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daily prop · Boston, MA · Northeast & Mid-Atlantic · settles Tue Oct 20

Boston high ≥ 63°F · Tue Oct 20

82¢
american -463 · decimal 1.22
on the tape
The line is the official NWS forecast at open. Settles on the ACIS official NWS daily record.
Canonical settlement condition: High ≥ 63°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¢10/0510/1310/19 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
wn2
99¢
aifs
89¢
icon
83¢
hres
68¢
eps
56¢
nbm
56¢

The Ladder

where the whole distribution sits
54–55°F2¢
56–57°F10¢
58–59°F24¢
60–61°F31¢
62–63°F22¢
64–65°F8¢
66–67°F2¢
calibration receipt: lead 1, scored on 14,459 settled station-days, consensus CRPS 1.516 vs climatology 8.861.

Receipts

prop id WP-KBOS-20261020-TMAX-GE63 · opened 2026-10-13T08:02:24+00:00 · minted to the append-only hash-chained tape at open; the settle writes next to the mint · inspect the tape