Trader consensus on Polymarket reflects tight uncertainty in short-range forecasts for Helsinki's highest temperature at Vantaa Airport on April 18, with the Finnish Meteorological Institute's latest guidance—updated April 16—projecting a daytime high around 9–12°C amid persistent north-northeasterly winds of 3–4 m/s ushering cooler continental air after Friday's anticipated 16°C peak. Ensemble prediction intervals span -5°C to 15°C, capturing model spread from ECMWF and GFS analogs on cloud cover variability and solar insolation under lengthening spring daylight; minimal precipitation risk (<10%) favors clearer skies that could boost maxima toward 13–14°C if winds lighten. Above mid-April climatological norms of 8–10°C, outcomes hinge on air mass persistence and diurnal heating, with overnight model updates poised to sharpen probabilities.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoHighest temperature in Helsinki on April 18?
Highest temperature in Helsinki on April 18?
12°C 29%
13°C 28%
11°C 26%
14°C or higher 15%
4°C or below
<1%
5°C
<1%
6°C
1%
7°C
1%
8°C
2%
9°C
4%
10°C
12%
11°C
26%
12°C
29%
13°C
28%
14°C or higher
15%
12°C 29%
13°C 28%
11°C 26%
14°C or higher 15%
4°C or below
<1%
5°C
<1%
6°C
1%
7°C
1%
8°C
2%
9°C
4%
10°C
12%
11°C
26%
12°C
29%
13°C
28%
14°C or higher
15%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Mercado abierto: Apr 16, 2026, 1:28 AM ET
Fuente de resolución
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 by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Fuente de resolución
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Trader consensus on Polymarket reflects tight uncertainty in short-range forecasts for Helsinki's highest temperature at Vantaa Airport on April 18, with the Finnish Meteorological Institute's latest guidance—updated April 16—projecting a daytime high around 9–12°C amid persistent north-northeasterly winds of 3–4 m/s ushering cooler continental air after Friday's anticipated 16°C peak. Ensemble prediction intervals span -5°C to 15°C, capturing model spread from ECMWF and GFS analogs on cloud cover variability and solar insolation under lengthening spring daylight; minimal precipitation risk (<10%) favors clearer skies that could boost maxima toward 13–14°C if winds lighten. Above mid-April climatological norms of 8–10°C, outcomes hinge on air mass persistence and diurnal heating, with overnight model updates poised to sharpen probabilities.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado
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