Polymarket's daily temperature markets in 39 world cities: each station's high so far, the way the rules count it, beside the favorite range (prices 30 minutes late on the free view).
The 11 US cities Polymarket runs are beside Kalshi's on each city page; how the two differ is at Kalshi vs Polymarket.
Busiest first: $1,089,095 traded on today's 37 markets. Each tile: the city's clock, its high so far in whole °C the way the rules round it, and Polymarket's favorite range. Tap a city for its page.
The high so far is from aviationweather.gov's copy of each station's reports, the source Polymarket's rules name: a guide to the settled value, never the value itself. Almanac shows information and tools. It never says what to buy or sell and never places an order.