Los Angeles high temperature: Kalshi vs Polymarket

Both markets settle on LAX (KLAX), but they count the high differently.

Kalshi

LAX (KLAX)

The day's official high, 1 AM to 1 AM while clocks are on daylight time.

Today, live · How it settles

Polymarket

Los Angeles International Airport (KLAX)

The highest hourly reading on NOAA's page for the station, in whole degrees, on the local calendar day.

The station on NOAA

Polymarket today, at Los Angeles International Airport

Highest hourly reading so far at Los Angeles International Airport (KLAX): 66°F at 12:53 AM. The line is each hourly report, the reports Polymarket's rules count; the stripes are its ranges.

How today is going

  • Station readings
  • High so far
  • Ranges, brighter = pricier (Polymarket, 30 min late)

Los Angeles so far today: the high is 66°F (12:53 AM), in the 66° to 67° bracket. The favorite is 70° to 71° at 60¢ (Polymarket, 30 minutes late), 4° above the high so far. The day ends at 12:00 AM PDT. 4 reports from KLAX from 12:00 AM to 4:20 AM PDT, between 63°F and 66°F; the latest 64°F at 3:53 AM.

aviationweather.govjust now, fetched Oct 31, 4:20 AM PDTPolymarket, 30 min late30 min ago, fetched Oct 31, 3:50 AM PDT
The chart's numbers
Brackets (prices 30 minutes late)
BracketPriceNote
78° or above<1¢
76° to 77°<1¢
74° to 75°1¢
72° to 73°29¢
70° to 71°60¢favorite
68° to 69°12¢
66° to 67°2¢high so far
64° to 65°<1¢
62° to 63°<1¢
60° to 61°<1¢
59° or below<1¢
Station reports
TimeReading
3:53 AM64°F
2:53 AM63°F
1:53 AM63°F
12:53 AM66°F
RangePrice (30 min late)Traded
78° or above<1¢255
76°–77°<1¢824
74°–75°1¢1,116
72°–73°29¢3,683
70°–71°60¢4,599
68°–69°12¢3,822
66°–67°high so far2¢1,267
64°–65°<1¢867
62°–63°<1¢380
60°–61°<1¢455
59° or below<1¢270
Polymarket, 30 min late30 min ago, fetched Oct 31, 3:50 AM PDTaviationweather.govjust now, fetched Oct 31, 4:20 AM PDT

Almanac's °F is each report's tenths of a degree Celsius, rounded. Polymarket settles on NOAA's page for the station, which lists the same reports. Today's market on Polymarket.

Make your call

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The last 30 days, side by side

Polymarket's winning range held the high Kalshi settled on for 14 of 29 days; it cooler on 15.

DayKalshi (KLAX)Polymarket (KLAX)Polymarket wasCompared
Oct 2973°72°–73°Same high
Oct 2875°74°–75°Same high
Oct 2775°74°–75°Same high
Oct 2677°76°–77°Same high
Oct 2578°76°–77°Polymarket cooler
Oct 2476°74°–75°Polymarket cooler
Oct 2372°70°–71°Polymarket cooler
Oct 22Not settled70°–71°Not settled on both yet
Oct 2174°72°–73°Polymarket cooler
Oct 2082°80°–81°Polymarket cooler
Oct 1980°78°–79°Polymarket cooler
Oct 1887°84°–85°Polymarket cooler
Oct 1790°88°–89°Polymarket cooler
Oct 1699°98°–99°Same high
Oct 1588°86°–87°Polymarket cooler
Oct 1481°80°–81°Same high
Oct 1373°72°–73°Same high
Oct 1269°68°–69°Same high
Oct 1174°72°–73°Polymarket cooler
Oct 1079°76°–77°Polymarket cooler
Oct 977°76°–77°Same high
Oct 880°80°–81°Same high
Oct 786°84°–85°Polymarket cooler
Oct 694°94°–95°Same high
Oct 5101°100° or aboveSame high
Oct 4102°100°–101°Polymarket cooler
Oct 3102°100°–101°Polymarket cooler
Oct 287°84°–85°Polymarket cooler
Oct 176°76°–77°Same high
Sep 3081°80°–81°Same high

Source: Kalshi's settlements: Kalshi's public market data; Polymarket's results: each daily event

How the two read the day

RuleKalshiPolymarket
What counts as the highThe day's official high for the station, as The Weather Company publishes it for Kalshi (weather.com/kalshi) for events from Aug 14, 2026. It has matched the NWS climate report's official high on 1,587 of 1,588 settled days, and that high counts a peak between hourly reports.The highest reading in the "Temp" column of NOAA's time-series page for the station, using its hourly data, in whole degrees. A peak between two readings isn't in that column, so it can come out lower than the official high.
The dayMidnight to midnight local standard time, so 1 AM to 1 AM while clocks are on daylight time.Every time listed on that day on NOAA's page, which shows the station's local clock time.
The rangesTwo-degree brackets, with an open bracket at each end. Where the brackets start moves from day to day (61°–62° one day, 62°–63° another).Two-degree ranges that start on an even number (62°–63°), with an open range at each end.
When it settlesAfter the final report for the day is out, usually the next morning.Once the first reading of the next day is on NOAA's page, or by 11:59 PM Eastern the next day. If NOAA has no data by then, the Weather Underground daily observations table is used.

Source: Polymarket's market rules (read Thu, Oct 22); Kalshi contract terms; The Weather Company's Kalshi data

All 11 cities, Kalshi vs Polymarket

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