Recent forecasts from models and agencies like the Finnish Meteorological Institute and Met Office point to a highest temperature near 18–19 °C on 30 August, with partly to mostly cloudy skies, light southwesterly winds, and a 50–60 % chance of showers that could limit afternoon warming. These conditions align closely with the historical average high of 18.4 °C for the date, yet traders assign nearly equal weight to 19 °C and 20 °C because small differences in cloud timing, shower intensity, or boundary-layer mixing can easily shift the daily maximum by 1–2 °C. Southerly flow may advect slightly warmer air, but increasing low-level moisture and expected precipitation keep higher outcomes (21 °C+) at lower implied probabilities. Updated model runs over the next 24–48 hours will likely narrow this tight range before resolution.
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?
19°C 37%
20°C 36%
21°C 17%
18°C 10%
NEW
NEW
Aug 30, 2026
14°C or below
<1%
15°C
<1%
16°C
2%
17°C
4%
18°C
10%
19°C
32%
20°C
36%
21°C
17%
22°C
2%
23°C
1%
24°C or higher
<1%
19°C 37%
20°C 36%
21°C 17%
18°C 10%
NEW
NEW
Aug 30, 2026
14°C or below
$83 Vol.
<1%
15°C
$105 Vol.
<1%
16°C
$0 Vol.
2%
17°C
$158 Vol.
4%
18°C
$283 Vol.
10%
19°C
$96 Vol.
32%
20°C
$89 Vol.
36%
21°C
$171 Vol.
17%
22°C
$0 Vol.
2%
23°C
$43 Vol.
1%
24°C or higher
$46 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 forecasts from models and agencies like the Finnish Meteorological Institute and Met Office point to a highest temperature near 18–19 °C on 30 August, with partly to mostly cloudy skies, light southwesterly winds, and a 50–60 % chance of showers that could limit afternoon warming. These conditions align closely with the historical average high of 18.4 °C for the date, yet traders assign nearly equal weight to 19 °C and 20 °C because small differences in cloud timing, shower intensity, or boundary-layer mixing can easily shift the daily maximum by 1–2 °C. Southerly flow may advect slightly warmer air, but increasing low-level moisture and expected precipitation keep higher outcomes (21 °C+) at lower implied probabilities. Updated model runs over the next 24–48 hours will likely narrow this tight range before resolution.
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
$1,073End 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 forecasts from models and agencies like the Finnish Meteorological Institute and Met Office point to a highest temperature near 18–19 °C on 30 August, with partly to mostly cloudy skies, light southwesterly winds, and a 50–60 % chance of showers that could limit afternoon warming. These conditions align closely with the historical average high of 18.4 °C for the date, yet traders assign nearly equal weight to 19 °C and 20 °C because small differences in cloud timing, shower intensity, or boundary-layer mixing can easily shift the daily maximum by 1–2 °C. Southerly flow may advect slightly warmer air, but increasing low-level moisture and expected precipitation keep higher outcomes (21 °C+) at lower implied probabilities. Updated model runs over the next 24–48 hours will likely narrow this tight range before resolution.
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
$1,073End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecasts from models and agencies like the Finnish Meteorological Institute and Met Office point to a highest temperature near 18–19 °C on 30 August, with partly to mostly cloudy skies, light southwesterly winds, and a 50–60 % chance of showers that could limit afternoon warming. These conditions align closely with the historical average high of 18.4 °C for the date, yet traders assign nearly equal weight to 19 °C and 20 °C because small differences in cloud timing, shower intensity, or boundary-layer mixing can easily shift the daily maximum by 1–2 °C. Southerly flow may advect slightly warmer air, but increasing low-level moisture and expected precipitation keep higher outcomes (21 °C+) at lower implied probabilities. Updated model runs over the next 24–48 hours will likely narrow this tight range before resolution.
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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