Highest temperature in Los Angeles on August 18?

Platform comparison

Market context

Los Angeles will record a maximum temperature on 18 August 2026, measured at LAX International Airport Station and logged in Weather Underground's Daily Observations table. The settlement window closes at midday UTC on that date, meaning traders must commit capital before the day's peak heat is fully established. The specific resolution source—Weather Underground's primary observations rather than their summary high-low figures—removes ambiguity but requires familiarity with that platform's data hierarchy.

Historical August temperatures at LAX cluster between 75°F and 85°F for daily highs, with rare excursions above 90°F. The 0% crowd probability suggests the market may be pricing an extreme outcome, or liquidity constraints are limiting participation. August 2026 sits within typical seasonal patterns; no El Niño or La Niña forecast anomalies currently point toward exceptional heat. Comparable August days at LAX over the past decade show consistent clustering around 78–82°F, establishing a baseline against which any range settlement should be evaluated.

Traders should monitor National Weather Service forecasts released in early August 2026, particularly any heat advisories or excessive heat warnings for Southern California. Deposit and withdrawal mechanics matter here: traders using SEPA transfers or Klarna's deferred payment rails should account for settlement delays, as position closure and fund redemption may extend beyond the 12:00 UTC resolution window. Book depth will likely remain thin until late July, when meteorological certainty increases and on-ramp friction diminishes for new capital entering the market.

Methodology

This page compares Highest temperature in Los Angeles on August 18? 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

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.

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.

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).