Kalshi: NWS Midway (KMDW) · Poly: Wunderground O'Hare (KORD) — DIFFERENT Airports·Thu, Jul 16

Daily High 2026-07-16

Prices as of 11:52 UTC on Jul 16, 2026, delayed about five minutes. Source markets: Kalshi · Polymarket. Resolution follows each venue's own market terms.

Curious how long a gap like this stays open? We measured it.

Bracket alignment

brackets offset today

Polymarket

≤89°—

90-91°—

92-93°—

94-95°—

96-97°—

98-99°—

100-101°—

102-103°—

104-105°—

106-107°—

≥108°—

Kalshi

≤91°—

92-93°—

94-95°—

96-97°—

98-99°—

≥100°—

Both venues' brackets on one temperature axis — each price belongs to its own venue's real bracket. Offset days show as shifted segments.

Bucket prices

KalshiPolymarket

≤89°F

—

90-91°F

—

92-93°F

—

94-95°F

—

96-97°F

—

98-99°F

—

100-101°F

—

102-103°F

—

104-105°F

—

106-107°F

—

≥108°F

—

Offset day: the venues' brackets differ by 1°F — the alignment strip above shows each venue's real brackets and prices. Prices are never combined.

Polymarket closes Jul 16, 12:00 UTC · Kalshi closes Jul 17, 05:59 UTC

Prices delayed about five minutes. Each venue's best ask per outcome; Kalshi asks are derived from its NO bids (ask = $1 minus the bid). Kalshi volume counts contracts, Polymarket volume is in dollars. Real-time prices and the full depth ladder are available via the WebSocket stream with an API key. Feed reference DINO-XKQZ7-9182.