PolymarketCheck availabilityNo KYC2% feeVerified resolution dataFairly calibratedCurrent implied probability72-73°F 50%+4.5%Leader of 11 outcomes
Market quality
100 / 100
High quality24h Volume
$16.5K
Liquidity
$74.4K
High liquidityBid / Ask
49.0% / 50.0%
Spread
2.0%
Tight spreadMarket data
Updated 11 minutes ago
Jul 21, 26, 1:02 AMJul 22, 26, 12:00 PM
Trends
Paper funds only — no real moneyNot financial advice
Selected outcome
72-73°F50%
Compare venues· 72-73°F
Ranked by market quality, then liquidity and 24h volume| Venue | Quality | Probability | vs reference | 24h Vol | Liq | Freshness | |
|---|---|---|---|---|---|---|---|
| PolymarketThis pageBest overall | High | 50% | — | $16.5K | $74.4K | 11 minutes ago | |
 Kalshi84% match · auto | High | 45% | — | $7.8K | $5.5K | 11 minutes ago | Open → |
Also available on Kalshi
Highest temperature in Chicago on Jul 22, 2026?
1d
45%
22%
16%
+3 more outcomes
88 • High qualityTight spreadMedium liquidityHigh ambiguity
Total Vol$7.8K
24h Vol$7.8K
KALSHIRules
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 22 Jul '26.
- The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.
- To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
- This market can not resolve until the first data point for the following date has been published on the resolution source.
- The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F).
- Thus, this is the level of precision that will be used when resolving the market.
Probabilities may differ due to different market structures, fees, and participant pools.
Volume trend
$16.5kJul 212d of dataJul 22
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Rules
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 22 Jul '26.
- The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.
- To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
- This market can not resolve until the first data point for the following date has been published on the resolution source.
- The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F).
- Thus, this is the level of precision that will be used when resolving the market.