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icon for Lowest temperature in Chicago on August 30?

Lowest temperature in Chicago on August 30?

icon for Lowest temperature in Chicago on August 30?

Lowest temperature in Chicago on August 30?

Aug 29

Aug 30

Aug 31

Aug 29

Aug 30

Aug 31

82°F or higher 38%

72-73°F 33%

70-71°F 32%

74-75°F 27%

Polymarket
NEW

82°F or higher 38%

72-73°F 33%

70-71°F 32%

74-75°F 27%

Polymarket
NEW

63°F or below

$66 Vol.

5%

64-65°F

$6 Vol.

5%

66-67°F

$0 Vol.

19%

68-69°F

$0 Vol.

25%

70-71°F

$0 Vol.

32%

72-73°F

$18 Vol.

33%

74-75°F

$0 Vol.

27%

76-77°F

$0 Vol.

25%

78-79°F

$10 Vol.

8%

80-81°F

$10 Vol.

7%

82°F or higher

$10 Vol.

38%

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 30 Aug '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. To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Current National Weather Service and model consensus indicates a low in the low 70s for Chicago on August 30, driven by persistent warm southerly flow and cloud cover that will limit overnight radiational cooling under mostly cloudy skies. Forecasts from NWS, WeatherBug, and others converge on an overnight minimum near 73–74°F, well above the 1991–2020 climatological average low of 64°F, reflecting a broader warm anomaly across the Midwest. Limited model disagreement centers on exact cloud timing and any brief shower influence, which could nudge readings a degree or two either way. With the market’s top outcomes clustered tightly around 70–77°F, traders are weighting these near-term guidance products heavily ahead of the official O’Hare observation that will determine resolution.

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 30 Aug '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.

To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.

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.

Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$119
End Date
Aug 30, 2026
Market Opened
Aug 28, 2026, 10:29 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=kord

Resolver

0x69c47De9D...
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 30 Aug '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. To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
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 30 Aug '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. To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Current National Weather Service and model consensus indicates a low in the low 70s for Chicago on August 30, driven by persistent warm southerly flow and cloud cover that will limit overnight radiational cooling under mostly cloudy skies. Forecasts from NWS, WeatherBug, and others converge on an overnight minimum near 73–74°F, well above the 1991–2020 climatological average low of 64°F, reflecting a broader warm anomaly across the Midwest. Limited model disagreement centers on exact cloud timing and any brief shower influence, which could nudge readings a degree or two either way. With the market’s top outcomes clustered tightly around 70–77°F, traders are weighting these near-term guidance products heavily ahead of the official O’Hare observation that will determine resolution.

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 30 Aug '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.

To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.

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.

Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$119
End Date
Aug 30, 2026
Market Opened
Aug 28, 2026, 10:29 AM ET

Resolution Source

https://www.weather.gov/wrh/timeseries?site=kord

Resolver

0x69c47De9D...
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 30 Aug '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. To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.

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Frequently Asked Questions

"Lowest temperature in Chicago on August 30?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "72-73°F" at 33%, followed by "70-71°F" at 32%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 33¢ implies that the market collectively assigns a 33% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Lowest temperature in Chicago on August 30?" is a newly created market on Polymarket, launched on Aug 28, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Lowest temperature in Chicago on August 30?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Lowest temperature in Chicago on August 30?" is "72-73°F" at 33%, meaning the market assigns a 33% chance to that outcome. The next closest outcome is "70-71°F" at 32%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Lowest temperature in Chicago on August 30?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.