Recent forecasts from the Finnish Meteorological Institute and other agencies show Helsinki's June 9 maximum likely reaching 18°C under mostly overcast skies with light sprinkles and northerly winds limiting daytime heating. This aligns with the tight market split between 18°C (47%) and 19°C (45%), as modest breaks in cloud cover or slightly stronger insolation could push readings to the higher threshold while persistent marine influence and precipitation keep values at or below 18°C. Historical June averages near 19°C provide context, but current model runs emphasize suppressed temperatures from stable atmospheric conditions. Final resolution depends on official observations by day's end.
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 June 9?
18°C 47%
19°C 45%
20°C 4.7%
21°C <1%
$52,424 Vol.
$52,424 Vol.
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
47%
19°C
45%
20°C
5%
21°C
1%
22°C
<1%
23°C
<1%
24°C or higher
<1%
18°C 47%
19°C 45%
20°C 4.7%
21°C <1%
$52,424 Vol.
$52,424 Vol.
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
47%
19°C
45%
20°C
5%
21°C
1%
22°C
<1%
23°C
<1%
24°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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: Jun 7, 2026, 12:08 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Recent forecasts from the Finnish Meteorological Institute and other agencies show Helsinki's June 9 maximum likely reaching 18°C under mostly overcast skies with light sprinkles and northerly winds limiting daytime heating. This aligns with the tight market split between 18°C (47%) and 19°C (45%), as modest breaks in cloud cover or slightly stronger insolation could push readings to the higher threshold while persistent marine influence and precipitation keep values at or below 18°C. Historical June averages near 19°C provide context, but current model runs emphasize suppressed temperatures from stable atmospheric conditions. Final resolution depends on official observations by day's end.
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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