Highest temperature in Seattle on July 22?

Platform comparison

Market context

Seattle’s highest temperature on 22 July will be whatever the noon-to-midnight reading at Sea-Tac tops out at in Wunderground’s daily history entry, and the market settles against the range containing that peak. With the crowd at **0% YES**, the price is effectively implying no confidence in a settlement-relevant hot-day print at the airport, which is consistent with a market that has already moved past the event date and is now waiting on the official source. [1]

The better frame is not the absolute temperature alone, but how these summer-heat markets usually trade against payment and funding friction: tighter books tend to appear when deposits are easy and cheap, while thinner depth can persist if users face extra steps moving cash in or out. On Polymarket, the most recent public view still showed the 92–93°F band leading at 45%, with 90–91°F next at 24%, which is the sort of clustering that usually reflects traders anchoring on a narrow late-summer distribution rather than a single-point forecast. [1]

For catalysts, the relevant watchpoints are the daily high at Seattle-Tacoma International Airport, any late-day warm surge, and whether the Wunderground history entry matches the market’s settlement window precisely. Seatac was already around 70°F in the latest public observation, which leaves room for intraday upside if sunshine and weak onshore flow persist, but the book will still only care about the final recorded maximum on the 22nd. [2]

Sources: 1 · 2

Methodology

This page compares Highest temperature in Seattle on July 22? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

FAQ

How does Klarna deposit work on Polymarket Klarna UK?

You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.

Which payment methods are supported?

Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.

How fast is SEPA deposit?

SEPA Instant: under 10 seconds. SEPA Standard: 1-2 business days. Both accepted fee-free; the internal USDC conversion runs automatically once EUR lands in the platform account.

What's the minimum deposit?

10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).

How do withdrawals work?

Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).