Current ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Finnish Meteorological Institute place the most likely daily maximum near 19°C for Helsinki on August 31, aligning with the 44% implied probability. This reflects stable high-pressure conditions and modest northerly flow that have kept recent observations within seasonal norms of 17–20°C. Model consensus shows limited spread around 18–20°C, though small shifts in cloud cover or wind could alter the peak by 1–2°C. Updated runs expected in the next 24–48 hours will provide the final guidance 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 31?
Highest temperature in Helsinki on August 31?
19°C 44%
18°C 26%
20°C 20%
21°C 9%
NEW
NEW
Aug 31, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
5%
17°C
6%
18°C
26%
19°C
44%
20°C
20%
21°C
9%
22°C or higher
4%
19°C 44%
18°C 26%
20°C 20%
21°C 9%
NEW
NEW
Aug 31, 2026
12°C or below
$6 Vol.
<1%
13°C
$6 Vol.
<1%
14°C
$6 Vol.
<1%
15°C
$72 Vol.
1%
16°C
$0 Vol.
5%
17°C
$150 Vol.
6%
18°C
$110 Vol.
26%
19°C
$50 Vol.
44%
20°C
$30 Vol.
20%
21°C
$11 Vol.
9%
22°C or higher
$6 Vol.
4%
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 31 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.Current ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Finnish Meteorological Institute place the most likely daily maximum near 19°C for Helsinki on August 31, aligning with the 44% implied probability. This reflects stable high-pressure conditions and modest northerly flow that have kept recent observations within seasonal norms of 17–20°C. Model consensus shows limited spread around 18–20°C, though small shifts in cloud cover or wind could alter the peak by 1–2°C. Updated runs expected in the next 24–48 hours will provide the final guidance 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 31 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 29, 2026, 12:58 AM ET
Volume
$448End Date
Aug 31, 2026Market Opened
Aug 29, 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 31 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.Current ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Finnish Meteorological Institute place the most likely daily maximum near 19°C for Helsinki on August 31, aligning with the 44% implied probability. This reflects stable high-pressure conditions and modest northerly flow that have kept recent observations within seasonal norms of 17–20°C. Model consensus shows limited spread around 18–20°C, though small shifts in cloud cover or wind could alter the peak by 1–2°C. Updated runs expected in the next 24–48 hours will provide the final guidance 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 31 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
$448End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Current ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Finnish Meteorological Institute place the most likely daily maximum near 19°C for Helsinki on August 31, aligning with the 44% implied probability. This reflects stable high-pressure conditions and modest northerly flow that have kept recent observations within seasonal norms of 17–20°C. Model consensus shows limited spread around 18–20°C, though small shifts in cloud cover or wind could alter the peak by 1–2°C. Updated runs expected in the next 24–48 hours will provide the final guidance 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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