Recent numerical weather prediction consensus from the Finnish Meteorological Institute and ensemble models indicates a high near 18–19 °C for Helsinki on August 31, driven by persistent cloud cover, southeasterly flow, and periods of rain or showers that limit insolation and daytime warming. Current conditions show temperatures around 19 °C with increasing moisture ahead of a low-pressure system, consistent with climatological late-August averages of 18–20 °C. Model runs highlight modest uncertainty tied to the exact timing and intensity of precipitation, which could allow brief clearing and a push toward 20 °C or keep readings capped near 18 °C. Updated forecasts and radar trends over the next 48 hours will refine these probabilities ahead of market 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 45%
20°C 29%
18°C 15%
21°C 6%
NEW
NEW
Aug 31, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
2%
17°C
5%
18°C
15%
19°C
45%
20°C
29%
21°C
6%
22°C or higher
2%
19°C 45%
20°C 29%
18°C 15%
21°C 6%
NEW
NEW
Aug 31, 2026
12°C or below
$294 Vol.
<1%
13°C
$294 Vol.
<1%
14°C
$16 Vol.
<1%
15°C
$131 Vol.
<1%
16°C
$72 Vol.
2%
17°C
$190 Vol.
5%
18°C
$426 Vol.
15%
19°C
$394 Vol.
45%
20°C
$53 Vol.
29%
21°C
$168 Vol.
6%
22°C or higher
$87 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 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.Recent numerical weather prediction consensus from the Finnish Meteorological Institute and ensemble models indicates a high near 18–19 °C for Helsinki on August 31, driven by persistent cloud cover, southeasterly flow, and periods of rain or showers that limit insolation and daytime warming. Current conditions show temperatures around 19 °C with increasing moisture ahead of a low-pressure system, consistent with climatological late-August averages of 18–20 °C. Model runs highlight modest uncertainty tied to the exact timing and intensity of precipitation, which could allow brief clearing and a push toward 20 °C or keep readings capped near 18 °C. Updated forecasts and radar trends over the next 48 hours will refine these probabilities ahead of market 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
$2,126End 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.Recent numerical weather prediction consensus from the Finnish Meteorological Institute and ensemble models indicates a high near 18–19 °C for Helsinki on August 31, driven by persistent cloud cover, southeasterly flow, and periods of rain or showers that limit insolation and daytime warming. Current conditions show temperatures around 19 °C with increasing moisture ahead of a low-pressure system, consistent with climatological late-August averages of 18–20 °C. Model runs highlight modest uncertainty tied to the exact timing and intensity of precipitation, which could allow brief clearing and a push toward 20 °C or keep readings capped near 18 °C. Updated forecasts and radar trends over the next 48 hours will refine these probabilities ahead of market 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
$2,126End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent numerical weather prediction consensus from the Finnish Meteorological Institute and ensemble models indicates a high near 18–19 °C for Helsinki on August 31, driven by persistent cloud cover, southeasterly flow, and periods of rain or showers that limit insolation and daytime warming. Current conditions show temperatures around 19 °C with increasing moisture ahead of a low-pressure system, consistent with climatological late-August averages of 18–20 °C. Model runs highlight modest uncertainty tied to the exact timing and intensity of precipitation, which could allow brief clearing and a push toward 20 °C or keep readings capped near 18 °C. Updated forecasts and radar trends over the next 48 hours will refine these probabilities ahead of market 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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