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Highest temperature in London on April 4?

Market icon

Highest temperature in London on April 4?

Mar 30

Apr 1

Apr 2

Apr 3

Mar 30

Apr 1

Apr 2

Apr 3

15°C 25%

16°C 24%

13°C 22%

14°C 21%

Polymarket
NEW

15°C 25%

16°C 24%

13°C 22%

14°C 21%

Polymarket
NEW

7°C or below

$817 Vol.

1%

8°C

$35 Vol.

12%

9°C

$0 Vol.

15%

10°C

$0 Vol.

15%

11°C

$5 Vol.

16%

12°C

$0 Vol.

16%

13°C

$2 Vol.

22%

14°C

$0 Vol.

21%

15°C

$2 Vol.

25%

16°C

$0 Vol.

24%

17°C or higher

$5 Vol.

14%

This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 4 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket reflects the tight clustering of latest ECMWF and GFS ensemble forecasts for London's highest temperature on April 4, projecting maxima around 13–16°C amid a trough-dominated upper-air pattern bringing changeable Atlantic weather. Cool mid-level temperatures and persistent cloud cover from low-pressure influences limit daytime heating, while partial clearings could nudge peaks toward 15–16°C; historical early-April averages at Heathrow hover near 13°C, reinforcing the mid-teens bias. Model spreads highlight uncertainty in frontal timing and insolation, with southerly winds as a key differentiator for warmer outcomes. Met Office updates and fresh model runs through April 2–3 will refine guidance ahead of resolution based on official observations.

Trader consensus on Polymarket reflects the tight clustering of latest ECMWF and GFS ensemble forecasts for London's highest temperature on April 4, projecting maxima around 13–16°C amid a trough-dominated upper-air pattern bringing changeable Atlantic weather. Cool mid-level temperatures and persistent cloud cover from low-pressure influences limit daytime heating, while partial clearings could nudge peaks toward 15–16°C; historical early-April averages at Heathrow hover near 13°C, reinforcing the mid-teens bias. Model spreads highlight uncertainty in frontal timing and insolation, with southerly winds as a key differentiator for warmer outcomes. Met Office updates and fresh model runs through April 2–3 will refine guidance ahead of resolution based on official observations.

Experimental AI-generated summary referencing Polymarket data · Updated
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 4 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket reflects the tight clustering of latest ECMWF and GFS ensemble forecasts for London's highest temperature on April 4, projecting maxima around 13–16°C amid a trough-dominated upper-air pattern bringing changeable Atlantic weather. Cool mid-level temperatures and persistent cloud cover from low-pressure influences limit daytime heating, while partial clearings could nudge peaks toward 15–16°C; historical early-April averages at Heathrow hover near 13°C, reinforcing the mid-teens bias. Model spreads highlight uncertainty in frontal timing and insolation, with southerly winds as a key differentiator for warmer outcomes. Met Office updates and fresh model runs through April 2–3 will refine guidance ahead of resolution based on official observations.

Trader consensus on Polymarket reflects the tight clustering of latest ECMWF and GFS ensemble forecasts for London's highest temperature on April 4, projecting maxima around 13–16°C amid a trough-dominated upper-air pattern bringing changeable Atlantic weather. Cool mid-level temperatures and persistent cloud cover from low-pressure influences limit daytime heating, while partial clearings could nudge peaks toward 15–16°C; historical early-April averages at Heathrow hover near 13°C, reinforcing the mid-teens bias. Model spreads highlight uncertainty in frontal timing and insolation, with southerly winds as a key differentiator for warmer outcomes. Met Office updates and fresh model runs through April 2–3 will refine guidance ahead of resolution based on official observations.

Experimental AI-generated summary referencing Polymarket data · Updated

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Frequently Asked Questions

"Highest temperature in London on April 4?" 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 "15°C" at 25%, followed by "16°C" at 24%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 25¢ implies that the market collectively assigns a 25% 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.

"Highest temperature in London on April 4?" is a newly created market on Polymarket, launched on Mar 29, 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 "Highest temperature in London on April 4?," 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 April 4?" is "15°C" at 25%, meaning the market assigns a 25% chance to that outcome. The next closest outcome is "16°C" at 24%. 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 April 4?" 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.