Recent ensemble forecasts from the ECMWF, GFS, and Finnish Meteorological Institute models converge on a maximum temperature of 18–19°C in Helsinki for August 24, supporting the market's heavy weighting toward those outcomes. Stabilizing high pressure and light northerly flow are promoting modest daytime radiative warming after cooler, showery conditions on the 22nd–23rd, with limited cloud cover and minimal advection of warmer air masses from the south. Official guidance from FMI and other agencies indicates a daytime peak near 18–19°C under partly cloudy skies, consistent with late-August climatology where Helsinki averages around 19°C but can vary with synoptic patterns. Traders appear to be pricing in this model consensus while noting small uncertainties from potential timing shifts in any residual showers or wind changes that could nudge readings slightly higher or lower.
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 24?
Highest temperature in Helsinki on August 24?
19°C 47%
18°C 35%
20°C 10%
17°C 9%
NEW
NEW
Aug 24, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
1%
17°C
9%
18°C
35%
19°C
47%
20°C
10%
21°C
3%
22°C or higher
1%
19°C 47%
18°C 35%
20°C 10%
17°C 9%
NEW
NEW
Aug 24, 2026
12°C or below
$76 Vol.
<1%
13°C
$126 Vol.
<1%
14°C
$406 Vol.
<1%
15°C
$248 Vol.
1%
16°C
$301 Vol.
1%
17°C
$580 Vol.
9%
18°C
$1,892 Vol.
35%
19°C
$2,353 Vol.
47%
20°C
$1,290 Vol.
10%
21°C
$272 Vol.
3%
22°C or higher
$371 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 24 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.Recent ensemble forecasts from the ECMWF, GFS, and Finnish Meteorological Institute models converge on a maximum temperature of 18–19°C in Helsinki for August 24, supporting the market's heavy weighting toward those outcomes. Stabilizing high pressure and light northerly flow are promoting modest daytime radiative warming after cooler, showery conditions on the 22nd–23rd, with limited cloud cover and minimal advection of warmer air masses from the south. Official guidance from FMI and other agencies indicates a daytime peak near 18–19°C under partly cloudy skies, consistent with late-August climatology where Helsinki averages around 19°C but can vary with synoptic patterns. Traders appear to be pricing in this model consensus while noting small uncertainties from potential timing shifts in any residual showers or wind changes that could nudge readings slightly higher or lower.
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 24 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 22, 2026, 1:57 AM ET
Volume
$7,916End Date
Aug 24, 2026Market Opened
Aug 22, 2026, 1:57 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 24 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.Recent ensemble forecasts from the ECMWF, GFS, and Finnish Meteorological Institute models converge on a maximum temperature of 18–19°C in Helsinki for August 24, supporting the market's heavy weighting toward those outcomes. Stabilizing high pressure and light northerly flow are promoting modest daytime radiative warming after cooler, showery conditions on the 22nd–23rd, with limited cloud cover and minimal advection of warmer air masses from the south. Official guidance from FMI and other agencies indicates a daytime peak near 18–19°C under partly cloudy skies, consistent with late-August climatology where Helsinki averages around 19°C but can vary with synoptic patterns. Traders appear to be pricing in this model consensus while noting small uncertainties from potential timing shifts in any residual showers or wind changes that could nudge readings slightly higher or lower.
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 24 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
$7,916End Date
Aug 24, 2026Market Opened
Aug 22, 2026, 1:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent ensemble forecasts from the ECMWF, GFS, and Finnish Meteorological Institute models converge on a maximum temperature of 18–19°C in Helsinki for August 24, supporting the market's heavy weighting toward those outcomes. Stabilizing high pressure and light northerly flow are promoting modest daytime radiative warming after cooler, showery conditions on the 22nd–23rd, with limited cloud cover and minimal advection of warmer air masses from the south. Official guidance from FMI and other agencies indicates a daytime peak near 18–19°C under partly cloudy skies, consistent with late-August climatology where Helsinki averages around 19°C but can vary with synoptic patterns. Traders appear to be pricing in this model consensus while noting small uncertainties from potential timing shifts in any residual showers or wind changes that could nudge readings slightly higher or lower.
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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