- Will the highest temperature in Helsinki be 11°C or below on September 4?<1¢
- Will the highest temperature in Helsinki be 12°C on September 4?<1¢
- Will the highest temperature in Helsinki be 13°C on September 4?<1¢
- Will the highest temperature in Helsinki be 14°C on September 4?<1¢
- Will the highest temperature in Helsinki be 15°C on September 4?<1¢
- Will the highest temperature in Helsinki be 16°C on September 4?5¢
- Will the highest temperature in Helsinki be 17°C on September 4?28¢
- Will the highest temperature in Helsinki be 18°C on September 4?51¢
- Will the highest temperature in Helsinki be 19°C on September 4?20¢
- Will the highest temperature in Helsinki be 20°C on September 4?1¢
- Will the highest temperature in Helsinki be 21°C or higher on September 4?<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 4 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.
Recent numerical weather prediction models, including GFS and ECMWF runs, indicate a maximum temperature in Helsinki on September 4 near 17–19°C under partly cloudy conditions with light southwesterly winds and minimal precipitation. This aligns with climatological averages for early September, when daily highs typically reach 15–18°C. Stable atmospheric patterns with no strong frontal systems or significant model divergences have kept the distribution centered on these values, with the 18°C outcome holding the highest implied probability as of the latest guidance. Minor variations in cloud cover or wind could shift the peak by 1°C, while updated model runs tomorrow morning will provide the final resolution inputs.