PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedData quality warningNo live quotes
Data as of Sep 30, 2026, 7:55 PM UTC · policy pm-quality-4
Current implied probability
45°F or below No observed price
45°F or below No observed priceMarket quality
31 / 100
Low quality24h Volume
—
Liquidity
$6.7K
Medium liquidityComments
0
Market data
Updated 19 minutes ago
Sep 30, 26, 7:29 AM UTCOct 2, 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.
Lowest temperature in Chicago on October 1?
PolymarketHighest temperature in Chicago on October 1?
PolymarketLowest temperature in Chicago on Sep 30, 2026?
KalshiWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 63 F on September 30, 2026? (minimum) (min) (coldest)?
ForecastExWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 64 F on September 30, 2026? (minimum) (min) (coldest)?
ForecastExWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 65 F on September 30, 2026? (minimum) (min) (coldest)?
ForecastExRules
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 2 Oct '26.
- The resolution source for this market will be information from NOAA, specifically the lowest 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.