PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedCurrent implied probability
74-75°F 27%Leader of 11 outcomes
74-75°F 27%Market quality
37 / 100
Low quality24h Volume
$54.2
Liquidity
$17.2K
Medium liquiditySpread
14.0 pt
Wide spreadComments
0
Market data
Updated 18 minutes ago
Sep 26, 26, 6:56 AM UTCSep 28, 26, 12:00 PM UTC
Trends
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 1 percentage points
- Fees:
- Yes
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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PolymarketHighest temperature in Chicago on September 26, 2026?
GeminiHighest temperature in Chicago on Sep 26, 2026?
KalshiRules
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 28 Sep '26.
- The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
- This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
- If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
- In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
- To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.