KalshiCheck availabilityKYC requiredVerified resolution dataFairly calibratedCurrent implied probability
71° to 72° 43.1%Leader of 6 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
71° to 72° 43.1%Market quality
76 / 100
High quality24h Volume
$15.3K
Liquidity
$12K
Medium liquiditySpread
1.0 pt
Tight spreadMarket data
Updated 12 minutes ago
Sep 26, 26, 2:00 PM UTCSep 28, 26, 6:00 AM UTC
Trends
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 5m (informational)
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Lowest temperature in Chicago on Sep 27, 2026?
KalshiRain in Chicago in Sep 2026?
KalshiHighest temperature in Chicago on September 28?
PolymarketWill the highest temperature in Chicago (CHI)(MDW)(KMDW) exceed 70 F on September 27, 2026? (maximum) (max) (hottest)?
ForecastExWill the highest temperature in Chicago (CHI)(MDW)(KMDW) exceed 69 F on September 27, 2026? (maximum) (max) (hottest)?
ForecastExLowest temperature in Chicago on September 27?
PolymarketRules
If the maximum temperature recorded at Chicago (CLIMDW) for Sep 27, 2026, is less than 67° fahrenheit according to The Weather Company, then the market resolves to Yes.
Settles via:The Weather Company
- Not all weather data is the same.
- While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.
- Reading weather data Preliminary Weather Company data may be subject to rounding and conversion differences from the final reported value.
- Use caution when interpreting preliminary Weather Company readings.
- If it is determined in the sole discretion of the Exchange that there is a material error in the initial non-preliminary publication, Expiration may be held until the publication of a non-materially-erroneous data revision or until the Expiration Date, whichever comes first.