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Highest temperature in Toronto on August 5?

icon for Highest temperature in Toronto on August 5?

Highest temperature in Toronto on August 5?

29°C 45%

28°C 25%

30°C 20%

27°C 4%

Polymarket
NEW

$14,123 Vol.

29°C 45%

28°C 25%

30°C 20%

27°C 4%

Polymarket
NEW

$14,123 Vol.

23°C or below

$455 Vol.

<1%

24°C

$856 Vol.

<1%

25°C

$2,760 Vol.

<1%

26°C

$1,714 Vol.

<1%

27°C

$587 Vol.

4%

28°C

$1,443 Vol.

25%

29°C

$2,851 Vol.

45%

30°C

$1,202 Vol.

20%

31°C

$742 Vol.

3%

32°C

$767 Vol.

1%

33°C or higher

$745 Vol.

1%

This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 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.**Environment Canada’s official forecast for Toronto on August 5 calls for sunny conditions after morning fog, with a daytime high of 29°C and humidex reaching 35 under southerly flow.** This aligns closely with the market’s top outcomes clustered at 28–30°C. Regional model consensus and recent upper-level ridging have supported above-normal warmth for early August in southern Ontario, consistent with broader seasonal outlooks projecting temperatures 1°C above average in parts of the east. Short-term guidance shows limited variability in maximum temperatures, keeping extremes below 27°C or above 31°C at low implied probabilities. Updated model runs and any late-day observations will provide the final data for market resolution.

This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.

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 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
$14,123
End Date
Aug 5, 2026
Market Opened
Aug 3, 2026, 9:02 PM ET
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 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 at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 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.**Environment Canada’s official forecast for Toronto on August 5 calls for sunny conditions after morning fog, with a daytime high of 29°C and humidex reaching 35 under southerly flow.** This aligns closely with the market’s top outcomes clustered at 28–30°C. Regional model consensus and recent upper-level ridging have supported above-normal warmth for early August in southern Ontario, consistent with broader seasonal outlooks projecting temperatures 1°C above average in parts of the east. Short-term guidance shows limited variability in maximum temperatures, keeping extremes below 27°C or above 31°C at low implied probabilities. Updated model runs and any late-day observations will provide the final data for market resolution.

This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.

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 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
$14,123
End Date
Aug 5, 2026
Market Opened
Aug 3, 2026, 9:02 PM ET
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 5 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 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 Toronto on August 5?" 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 "29°C" at 45%, followed by "28°C" at 25%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 45¢ implies that the market collectively assigns a 45% 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 Toronto on August 5?" has generated $14.1K in total trading volume since the market launched on Aug 3, 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 Toronto on August 5?," 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 Toronto on August 5?" is "29°C" at 45%, meaning the market assigns a 45% chance to that outcome. The next closest outcome is "28°C" at 25%. 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 Toronto on August 5?" 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.