Highest temperature in NYC on July 4?

Platform comparison

Market context

The real-world event at stake is the peak temperature recorded at LaGuardia Airport on 4 July 2026, a date historically prone to intense summer heat. Current crowd-implied probability for a “YES” outcome sits at 0%, yet model consensus forecasts a high near 95°F under mostly sunny skies transitioning to afternoon thunderstorms. Market frontrunners point to 98–99°F at 41% and 96–97°F at 39%, suggesting traders are pricing in a hot but not record-breaking day.

Historical precedents frame this probability: LaGuardia hit 107°F on 3 July 1966, its all-time record, while recent years show July highs ranging from 81°F to 99°F. In 2026, both LaGuardia and Newark reached 104°F on a single day, with heat indexes peaking despite dew points returning to the 70s. These comparable cases indicate that while extreme heat is possible, the current 0% YES probability may be overly cautious given the forecasted 95°F baseline and recent volatility.

Traders should monitor the National Weather Service updates for LaGuardia, particularly the 12:55 pm reading of 91°F, and watch for afternoon thunderstorm development that could suppress peak temperatures. The New York Times reported a Fourth of July heat wave forecast with airport peaks reaching 101°F earlier in the week, and projections suggesting temperatures could climb to 110–115°F if conditions align. Funding flows from Klarna deposits and SEPA withdrawals are driving book depth, linking market traction directly to payment rails that enable rapid position adjustments as weather data evolves.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in NYC on July 4? 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.

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.

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.

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).

Are payment details protected?

Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.