PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedCurrent implied probability
54-55°F 45%+25.0ptLeader of 11 outcomes
54-55°F 45%+25.0ptMarket quality
38 / 100
Low quality24h Volume
$23.9
Liquidity
$1.4K
Low liquiditySpread
6.0 pt
Wide spreadComments
0
Market data
Updated 23 minutes ago
Sep 27, 26, 7:29 AM UTCSep 29, 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 September 30?
PolymarketHighest temperature in Chicago on September 29?
PolymarketHighest temperature in Chicago on September 28, 2026?
GeminiLowest temperature in Chicago on Sep 28, 2026?
KalshiWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 55 F on September 28, 2026? (minimum) (min) (coldest)?
ForecastExWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 54 F on September 28, 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 29 Sep '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.