Will the highest temperature in Chicago be between 70-71°F on September 18?
What resolves this contract
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 18 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 observa
How to read the price
Prediction market prices are expressed in cents on the dollar. A YES contract trading at 85¢ means the market is pricing in a 85.0% implied probability of the event resolving YES. If resolution comes back YES, the contract pays $1. If NO, it pays $0.
Volume vs. open interest
Total traded volume ($9,910) reflects every buy and sell across the life of this contract. Open interest ($82) is the dollar value of positions currently held by traders. Deep liquidity and wide open interest are the two signals that the quoted price is reliable.
Where to trade this market
This contract is listed on Polymarket. PicksByOdds does not accept deposits, execute trades, or offer brokerage. We publish the data; you decide what to do with it.
Similar markets on the US-regulated exchange
Kalshi lists related contracts US traders can legally access. Spread is typically similar; liquidity varies.
| Market | YES | Volume |
|---|---|---|
| Will the maximum temperature be >79° on Sep 18, 2026: 80° or above | 1¢ | $77,252 |
| Will the maximum temperature be 76-77° on Sep 18, 2026: 76° to 77° | 95¢ | $64,633 |
| Will the maximum temperature be 78-79° on Sep 18, 2026: 78° to 79° | 5¢ | $62,641 |
Markets in the same story
| Market | YES | Volume |
|---|---|---|
| Will the Doge-1 Lunar Mission launch by December 31, 2026? | 3¢ | $994,536 |
| Will Lovable be acquired before 2027? | 5¢ | $982,488 |
| Will Microsoft be the largest company in the world by market cap on December 31? | 1¢ | $978,211 |
Common questions about this market
How is this market resolved?
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 18 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 observa
When does this contract expire?
This contract closes on 2026-09-18. After close, the final outcome is determined per the resolution rules above, and contracts settle at $1 (winning side) or $0 (losing side).
What happens if I buy YES at 85¢?
If the event resolves YES, each YES contract pays $1, a profit of 15¢ per dollar risked. If it resolves NO, the contract pays $0 and the full 85¢ is lost. Current market price implies a 85.0% probability of YES.
Where is this market listed?
This contract is listed on Polymarket. PicksByOdds aggregates and displays public market data; we do not broker trades or custody funds.
How reliable is the quoted price?
This market has $9,910 in total traded volume and $82 in open interest. Deeper liquidity generally means tighter spreads and more reliable implied probabilities. Prices refresh multiple times per day.