Recent forecast consensus from the Finnish Meteorological Institute and European models points to a highest temperature of 19–20 °C in Helsinki on 30 August, aligning with market-implied odds near 80 % combined. Persistent cloud cover, southerly flow, and scattered showers are expected to limit daytime heating, keeping conditions close to the 1991–2020 average high of 18.4 °C. Model runs show minor spread in maximum values depending on the timing and intensity of precipitation, while late-summer climatology indicates that exceeding 21 °C would require clearer skies and reduced moisture—scenarios currently assigned low probability by traders. Official FMI observations will resolve the market.
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 30?
Highest temperature in Helsinki on August 30?
20°C 42%
19°C 40%
18°C 13%
21°C 5%
NEW
NEW
Aug 30, 2026
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
3%
18°C
13%
19°C
40%
20°C
42%
21°C
5%
22°C
1%
23°C
<1%
24°C or higher
<1%
20°C 42%
19°C 40%
18°C 13%
21°C 5%
NEW
NEW
Aug 30, 2026
14°C or below
$131 Vol.
<1%
15°C
$191 Vol.
<1%
16°C
$153 Vol.
<1%
17°C
$269 Vol.
3%
18°C
$933 Vol.
13%
19°C
$384 Vol.
40%
20°C
$1,729 Vol.
42%
21°C
$583 Vol.
5%
22°C
$92 Vol.
1%
23°C
$276 Vol.
<1%
24°C or higher
$89 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 30 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 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.
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.Recent forecast consensus from the Finnish Meteorological Institute and European models points to a highest temperature of 19–20 °C in Helsinki on 30 August, aligning with market-implied odds near 80 % combined. Persistent cloud cover, southerly flow, and scattered showers are expected to limit daytime heating, keeping conditions close to the 1991–2020 average high of 18.4 °C. Model runs show minor spread in maximum values depending on the timing and intensity of precipitation, while late-summer climatology indicates that exceeding 21 °C would require clearer skies and reduced moisture—scenarios currently assigned low probability by traders. Official FMI observations will resolve the market.
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 30 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 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.
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 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.
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 28, 2026, 12:58 AM ET
Volume
$4,828End Date
Aug 30, 2026Market Opened
Aug 28, 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 30 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 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.
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.Recent forecast consensus from the Finnish Meteorological Institute and European models points to a highest temperature of 19–20 °C in Helsinki on 30 August, aligning with market-implied odds near 80 % combined. Persistent cloud cover, southerly flow, and scattered showers are expected to limit daytime heating, keeping conditions close to the 1991–2020 average high of 18.4 °C. Model runs show minor spread in maximum values depending on the timing and intensity of precipitation, while late-summer climatology indicates that exceeding 21 °C would require clearer skies and reduced moisture—scenarios currently assigned low probability by traders. Official FMI observations will resolve the market.
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 30 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 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.
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 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.
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
$4,828End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecast consensus from the Finnish Meteorological Institute and European models points to a highest temperature of 19–20 °C in Helsinki on 30 August, aligning with market-implied odds near 80 % combined. Persistent cloud cover, southerly flow, and scattered showers are expected to limit daytime heating, keeping conditions close to the 1991–2020 average high of 18.4 °C. Model runs show minor spread in maximum values depending on the timing and intensity of precipitation, while late-summer climatology indicates that exceeding 21 °C would require clearer skies and reduced moisture—scenarios currently assigned low probability by traders. Official FMI observations will resolve the market.
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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