Current forecasts from the Finnish Meteorological Institute and BBC Weather indicate a high near 20°C in Helsinki on August 26, 2026, with sunny intervals and light northerly winds moderating temperatures amid seasonal late-summer cooling. This aligns with August climatology of 18–20°C daily maxima, though short-term model runs show 1–2°C uncertainty tied to cloud cover, boundary-layer mixing, and Baltic Sea influences. Trader consensus clustering on 21°C (39.5%) and 22°C (36.5%) reflects skin-in-the-game assessment of upside potential from clearer skies or localized warming at the Vantaa Airport station, balanced against the risk of cooler advection keeping readings at or below 20°C.
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?
Highest temperature in Helsinki on August 26?
21°C 40%
22°C 37%
20°C 14%
23°C 9%
NEW
NEW
Aug 26, 2026
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
1%
18°C
<1%
19°C
3%
20°C
14%
21°C
40%
22°C
37%
23°C
9%
24°C or higher
2%
21°C 40%
22°C 37%
20°C 14%
23°C 9%
NEW
NEW
Aug 26, 2026
14°C or below
$224 Vol.
<1%
15°C
$157 Vol.
<1%
16°C
$87 Vol.
<1%
17°C
$8 Vol.
1%
18°C
$173 Vol.
<1%
19°C
$222 Vol.
3%
20°C
$422 Vol.
14%
21°C
$1,942 Vol.
40%
22°C
$516 Vol.
37%
23°C
$679 Vol.
9%
24°C or higher
$482 Vol.
2%
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 26 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
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 forecasts from the Finnish Meteorological Institute and BBC Weather indicate a high near 20°C in Helsinki on August 26, 2026, with sunny intervals and light northerly winds moderating temperatures amid seasonal late-summer cooling. This aligns with August climatology of 18–20°C daily maxima, though short-term model runs show 1–2°C uncertainty tied to cloud cover, boundary-layer mixing, and Baltic Sea influences. Trader consensus clustering on 21°C (39.5%) and 22°C (36.5%) reflects skin-in-the-game assessment of upside potential from clearer skies or localized warming at the Vantaa Airport station, balanced against the risk of cooler advection keeping readings at or below 20°C.
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 26 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
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
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
Volume
$4,911End Date
Aug 26, 2026Market Opened
Aug 24, 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 26 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
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 forecasts from the Finnish Meteorological Institute and BBC Weather indicate a high near 20°C in Helsinki on August 26, 2026, with sunny intervals and light northerly winds moderating temperatures amid seasonal late-summer cooling. This aligns with August climatology of 18–20°C daily maxima, though short-term model runs show 1–2°C uncertainty tied to cloud cover, boundary-layer mixing, and Baltic Sea influences. Trader consensus clustering on 21°C (39.5%) and 22°C (36.5%) reflects skin-in-the-game assessment of upside potential from clearer skies or localized warming at the Vantaa Airport station, balanced against the risk of cooler advection keeping readings at or below 20°C.
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 26 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
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
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
$4,911End Date
Aug 26, 2026Market Opened
Aug 24, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Current forecasts from the Finnish Meteorological Institute and BBC Weather indicate a high near 20°C in Helsinki on August 26, 2026, with sunny intervals and light northerly winds moderating temperatures amid seasonal late-summer cooling. This aligns with August climatology of 18–20°C daily maxima, though short-term model runs show 1–2°C uncertainty tied to cloud cover, boundary-layer mixing, and Baltic Sea influences. Trader consensus clustering on 21°C (39.5%) and 22°C (36.5%) reflects skin-in-the-game assessment of upside potential from clearer skies or localized warming at the Vantaa Airport station, balanced against the risk of cooler advection keeping readings at or below 20°C.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions