**Current numerical weather prediction consensus from sources including the Finnish Meteorological Institute, ECMWF, and GFS runs favors a daytime maximum of 19–21°C in Helsinki on August 27 under a stable high-pressure regime.** Light winds, partly cloudy skies, and moderate late-summer insolation support efficient daytime heating without significant cloud suppression or precipitation, aligning with the market’s heaviest weighting on 21°C (35%), 20°C (22.5%), and 22°C (15.5%). These outcomes sit slightly above the long-term average high of roughly 18–19°C for the date, reflecting the current anticyclonic pattern that limits mixing and allows peak temperatures to reach the upper end of seasonal norms. Short-range model agreement remains high through the period, though minor variations in cloud cover or boundary-layer moisture could shift the exact maximum by 1–2°C. Traders are thus pricing the tight cluster around the most probable forecast range rather than extremes.
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 27?
Highest temperature in Helsinki on August 27?
21°C 36%
20°C 23%
22°C 19%
19°C 8%
NEW
NEW
Aug 27, 2026
16°C or below
4%
17°C
2%
18°C
5%
19°C
8%
20°C
23%
21°C
36%
22°C
26%
23°C
6%
24°C
<1%
25°C
<1%
26°C or higher
<1%
21°C 36%
20°C 23%
22°C 19%
19°C 8%
NEW
NEW
Aug 27, 2026
16°C or below
$10 Vol.
4%
17°C
$0 Vol.
2%
18°C
$0 Vol.
5%
19°C
$71 Vol.
8%
20°C
$29 Vol.
23%
21°C
$0 Vol.
36%
22°C
$52 Vol.
26%
23°C
$0 Vol.
6%
24°C
$0 Vol.
<1%
25°C
$0 Vol.
<1%
26°C or higher
$0 Vol.
<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 27 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=efhk
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.**Current numerical weather prediction consensus from sources including the Finnish Meteorological Institute, ECMWF, and GFS runs favors a daytime maximum of 19–21°C in Helsinki on August 27 under a stable high-pressure regime.** Light winds, partly cloudy skies, and moderate late-summer insolation support efficient daytime heating without significant cloud suppression or precipitation, aligning with the market’s heaviest weighting on 21°C (35%), 20°C (22.5%), and 22°C (15.5%). These outcomes sit slightly above the long-term average high of roughly 18–19°C for the date, reflecting the current anticyclonic pattern that limits mixing and allows peak temperatures to reach the upper end of seasonal norms. Short-range model agreement remains high through the period, though minor variations in cloud cover or boundary-layer moisture could shift the exact maximum by 1–2°C. Traders are thus pricing the tight cluster around the most probable forecast range rather than extremes.
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 27 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=efhk
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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 25, 2026, 12:58 AM ET
Volume
$162End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...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 27 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=efhk
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.**Current numerical weather prediction consensus from sources including the Finnish Meteorological Institute, ECMWF, and GFS runs favors a daytime maximum of 19–21°C in Helsinki on August 27 under a stable high-pressure regime.** Light winds, partly cloudy skies, and moderate late-summer insolation support efficient daytime heating without significant cloud suppression or precipitation, aligning with the market’s heaviest weighting on 21°C (35%), 20°C (22.5%), and 22°C (15.5%). These outcomes sit slightly above the long-term average high of roughly 18–19°C for the date, reflecting the current anticyclonic pattern that limits mixing and allows peak temperatures to reach the upper end of seasonal norms. Short-range model agreement remains high through the period, though minor variations in cloud cover or boundary-layer moisture could shift the exact maximum by 1–2°C. Traders are thus pricing the tight cluster around the most probable forecast range rather than extremes.
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 27 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=efhk
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
Volume
$162End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...**Current numerical weather prediction consensus from sources including the Finnish Meteorological Institute, ECMWF, and GFS runs favors a daytime maximum of 19–21°C in Helsinki on August 27 under a stable high-pressure regime.** Light winds, partly cloudy skies, and moderate late-summer insolation support efficient daytime heating without significant cloud suppression or precipitation, aligning with the market’s heaviest weighting on 21°C (35%), 20°C (22.5%), and 22°C (15.5%). These outcomes sit slightly above the long-term average high of roughly 18–19°C for the date, reflecting the current anticyclonic pattern that limits mixing and allows peak temperatures to reach the upper end of seasonal norms. Short-range model agreement remains high through the period, though minor variations in cloud cover or boundary-layer moisture could shift the exact maximum by 1–2°C. Traders are thus pricing the tight cluster around the most probable forecast range rather than extremes.
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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