- Will the highest temperature in Helsinki be 17°C on September 3?3¢
- Will the highest temperature in Helsinki be 18°C on September 3?22¢
- Will the highest temperature in Helsinki be 19°C on September 3?71¢
- Will the highest temperature in Helsinki be 20°C on September 3?6¢
- Will the highest temperature in Helsinki be 21°C on September 3?<1¢
- Will the highest temperature in Helsinki be 22°C on September 3?<1¢
- Will the highest temperature in Helsinki be 23°C on September 3?<1¢
- Will the highest temperature in Helsinki be 24°C or higher on September 3?<1¢
- Will the highest temperature in Helsinki be 14°C or below on September 3?<1¢
- Will the highest temperature in Helsinki be 15°C on September 3?<1¢
- Will the highest temperature in Helsinki be 16°C on September 3?<1¢
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 3 Sep '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=efhk 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. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. 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.
Forecasts from GFS and Met Office models indicate a daily maximum of 17–18°C in Helsinki on September 3 under partly cloudy skies and moderate southwesterly winds, positioning 18°C and 19°C as the leading market outcomes. These values sit slightly above the 1991–2020 climatological average high of 17.7°C for the date, with current conditions showing stable pressure and limited diurnal warming potential. Official station data, such as from Helsinki Kaisaniemi, will determine the exact peak; any late-day model adjustments or localized heating could refine the 70.5% implied probability on 19°C versus the 24.5% on 18°C before resolution.