Highest temperature in Houston on July 23?

Platform comparison

Market context

The question is whether Houston’s William P. Hobby Airport will post a daily high temperature above the market’s relevant band by the close of the settlement window. On a summer day in Houston, the main driver is usually the afternoon heat build-up rather than early-morning readings, so a 0% implied YES leaves the book effectively saying the market sees no path to an extreme outturn at Hobby.

Historical comparables argue for caution on a zero price, because Houston regularly prints mid-90s Fahrenheit in late July even without exceptional conditions. One recent Houston past-weather entry shows a 95°F high with only light winds, which is consistent with the sort of everyday summer heat that can still settle into the upper range if cloud cover breaks and winds stay modest.[1] That matters for funding depth too: markets like this often trade shallow when fiat on-ramp friction is high, so the spread can be less about perfect forecasting and more about how much fresh capital arrives through the rails traders actually use.

For catalysts, watch the local forecast, any convective cloud cover, and whether morning haze or showers suppress the daytime maximum at Hobby. The settlement source is Wunderground’s daily history page for KHOU, so traders will be watching the airport-specific reading rather than a broader Houston metro estimate. If the day turns into a typical clear, humid Gulf Coast afternoon, highs can still surprise relative to a zero-implied book; if moisture and clouds linger, the market’s current pricing is easier to justify.

Sources: 1

Methodology

This page compares Highest temperature in Houston on July 23? 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

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.

Can I deposit with a credit card?

Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.

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).