Trader sentiment clusters tightly around 48-51°F highs for Seattle on March 21, driven by converging short-range forecasts from NOAA's GFS and ECMWF ensembles projecting a persistent cool marine layer from Pacific onshore flow, capping diurnal heating under partly cloudy skies. The slim edge to 50-51°F (29%) over 48-49°F (28.5%) stems from the latest 12z GFS run indicating slight upper-ridge amplification allowing marginal warm-air advection aloft, versus ECMWF's troughier solution favoring stratus persistence and coastal chill. March climatology shows a median high near 52°F with 1σ variability of ±5°F, but current jet stream positioning favors the lower bins; watch 18z updates for resolution-defining cloud break timing near Sea-Tac Airport.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in Seattle on March 21?
Highest temperature in Seattle on March 21?
50-51°F 30%
48-49°F 29%
52-53°F 12%
46-47°F 11.2%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
11%
48-49°F
29%
50-51°F
30%
52-53°F
12%
54-55°F
8%
56-57°F
8%
58-59°F
2%
60°F or higher
2%
50-51°F 30%
48-49°F 29%
52-53°F 12%
46-47°F 11.2%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
11%
48-49°F
29%
50-51°F
30%
52-53°F
12%
54-55°F
8%
56-57°F
8%
58-59°F
2%
60°F or higher
2%
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 Seattle-Tacoma International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
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 Fahrenheit (eg, 21°F). 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 Aberto: Mar 17, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Trader sentiment clusters tightly around 48-51°F highs for Seattle on March 21, driven by converging short-range forecasts from NOAA's GFS and ECMWF ensembles projecting a persistent cool marine layer from Pacific onshore flow, capping diurnal heating under partly cloudy skies. The slim edge to 50-51°F (29%) over 48-49°F (28.5%) stems from the latest 12z GFS run indicating slight upper-ridge amplification allowing marginal warm-air advection aloft, versus ECMWF's troughier solution favoring stratus persistence and coastal chill. March climatology shows a median high near 52°F with 1σ variability of ±5°F, but current jet stream positioning favors the lower bins; watch 18z updates for resolution-defining cloud break timing near Sea-Tac Airport.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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