Highest temperature in Seattle on August 10?

Platform comparison

Market context

Seattle’s temperature on 10 August will settle off the highest reading recorded at Sea-Tac, not the day’s headline high on a forecast widget. The market is therefore about the airport station’s actual peak in Fahrenheit, with the current crowd price at 0% YES implying traders see the relevant band as effectively closed off even though the published forecast sits around the mid-70s and the historical August 10 record is 98°F. For context, Seattle’s average August high is about 77.5°F, while the extreme August peak has reached 99°F, so the distribution is normally narrow but has a long hot tail in rare synoptic setups.[3][16][8]

That makes comparable late-summer heat episodes the main guide to reading this book. Seattle’s 10 August records show 98°F in 1981 and 95°F in 1977, while more typical recent forecasts cluster in the mid-70s to low-80s, which tends to leave the upper bands thin unless a warm inland plume arrives.[1][16][6] In market terms, depth should track who can fund quickly and cheaply: card-style on-ramps such as Klarna can widen participation, while SEPA bank transfers are usually cheaper but slower to clear, and USDC adds faster settlement for traders already holding crypto balances. The tighter the funding path, the easier it is for the order book to absorb size before a weather move is obvious.

The main catalysts are the National Weather Service and major forecast updates through the daytime cycle, because one model shift on cloud cover, marine push, or inland heat transport can move the expected high by several degrees. Traders also watch whether the airport clears under broken cloud or remains capped by the coastal layer; Seattle’s recent forecast range for 10 August has sat around 75°F/56°F, which is far from record territory unless the afternoon warms materially beyond guidance.[12][17] On the funding side, book depth will usually be most sensitive after fresh deposits land, especially where SEPA cut-offs or crypto transfers determine how quickly new capital can hit the market.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Seattle on August 10? 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).

UK Frequently Asked Questions

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.

What does SOFORT cost as a deposit method?

Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.

Can UK traders use Klarna to deposit on Polymarket?

Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.

What payment methods can UK users use for Polymarket?

UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.

How long do Polymarket withdrawals take for UK users?

Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).