Market-implied odds favor a Helsinki high of 21°C or 22°C on August 26, reflecting ensemble consensus from models such as ECMWF, GFS, and FMI showing partly cloudy skies under high pressure with light northwest winds. These outcomes hinge on subtle differences in peak insolation timing, cloud fraction, and Baltic Sea advection, which can shift the maximum by 1°C. Recent stable anticyclonic conditions have kept precipitation near zero and moderated marine cooling, supporting temperatures above the 19°C seasonal average. Traders weigh model spread and the narrow resolution thresholds, with further updates from official agencies likely to refine the range before the daily maximum is recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on August 26?
21°C 37%
22°C 36%
20°C 17%
23°C 11%
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
2%
18°C
2%
19°C
4%
20°C
17%
21°C
37%
22°C
36%
23°C
11%
24°C or higher
2%
21°C 37%
22°C 36%
20°C 17%
23°C 11%
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
2%
18°C
2%
19°C
4%
20°C
17%
21°C
37%
22°C
36%
23°C
11%
24°C or higher
2%
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
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.
Market Opened: Aug 24, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...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
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Market-implied odds favor a Helsinki high of 21°C or 22°C on August 26, reflecting ensemble consensus from models such as ECMWF, GFS, and FMI showing partly cloudy skies under high pressure with light northwest winds. These outcomes hinge on subtle differences in peak insolation timing, cloud fraction, and Baltic Sea advection, which can shift the maximum by 1°C. Recent stable anticyclonic conditions have kept precipitation near zero and moderated marine cooling, supporting temperatures above the 19°C seasonal average. Traders weigh model spread and the narrow resolution thresholds, with further updates from official agencies likely to refine the range before the daily maximum is recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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