This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 23 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=cyyz 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 cloud cover, scattered showers, and a shift to moderate west-northwest winds are suppressing daytime heating in Toronto on August 23, keeping the maximum temperature near or below seasonal norms. Official Environment Canada guidance and multiple numerical models converge on a high of 20–21 °C, with brief afternoon instability unlikely to produce significant warming. This places the market’s leading outcomes (21 °C at 33.5 %, 20 °C at 26.5 %, 22 °C at 23.5 %) in close contention, as small differences in timing of cloud breaks or shower intensity can alter the daily peak by 1–2 °C. Cooler-than-average conditions reflect the influence of a post-frontal air mass, consistent with recent model runs showing limited diurnal recovery.