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Highest temperature in London on August 29?

icon for Highest temperature in London on August 29?

Highest temperature in London on August 29?

20°C 47%

21°C 37%

22°C 15%

23°C 2%

Polymarket

$117,869 Vol.

20°C 47%

21°C 37%

22°C 15%

23°C 2%

Polymarket

$117,869 Vol.

16°C or below

$1,433 Vol.

<1%

17°C

$4,019 Vol.

<1%

18°C

$11,474 Vol.

<1%

19°C

$27,720 Vol.

<1%

20°C

$14,587 Vol.

47%

21°C

$15,434 Vol.

37%

22°C

$14,308 Vol.

15%

23°C

$11,536 Vol.

2%

24°C

$12,370 Vol.

<1%

25°C

$3,141 Vol.

<1%

26°C or higher

$1,848 Vol.

<1%

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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.Persistent rain and heavy showers across London today, driven by a moist southwesterly flow, are suppressing daytime heating and limiting the highest temperature to official Met Office guidance of 21°C. Widespread cloud cover reduces solar insolation while evaporative cooling from precipitation further caps peaks, with hourly observations and model runs showing brief maxima near 20–21°C amid gusty conditions. The narrow spread between 20°C and 21°C outcomes in trader pricing reflects remaining uncertainty over localized shower timing and exact measurement thresholds before the day ends. Updated forecasts and real-time station data from agencies like the Met Office will continue to refine these probabilities through resolution.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc

If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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
$117,869
End Date
Aug 29, 2026
Market Opened
Aug 27, 2026, 12:55 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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 highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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.Persistent rain and heavy showers across London today, driven by a moist southwesterly flow, are suppressing daytime heating and limiting the highest temperature to official Met Office guidance of 21°C. Widespread cloud cover reduces solar insolation while evaporative cooling from precipitation further caps peaks, with hourly observations and model runs showing brief maxima near 20–21°C amid gusty conditions. The narrow spread between 20°C and 21°C outcomes in trader pricing reflects remaining uncertainty over localized shower timing and exact measurement thresholds before the day ends. Updated forecasts and real-time station data from agencies like the Met Office will continue to refine these probabilities through resolution.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc

If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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
$117,869
End Date
Aug 29, 2026
Market Opened
Aug 27, 2026, 12:55 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 29 Aug '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=eglc If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 Celsius (eg, 9°C). 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

"Highest temperature in London on August 29?" 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 "20°C" at 47%, followed by "21°C" at 37%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 47¢ implies that the market collectively assigns a 47% 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.

As of today, "Highest temperature in London on August 29?" has generated $117.9K in total trading volume since the market launched on Aug 27, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in London on August 29?," 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 "Highest temperature in London on August 29?" is "20°C" at 47%, meaning the market assigns a 47% chance to that outcome. The next closest outcome is "21°C" at 37%. 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 "Highest temperature in London on August 29?" 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.