National Weather Service guidance currently projects a mostly sunny Juneteenth high near 80°F for Seattle, anchoring trader consensus around the 80-81°F and 82-83°F bins. This reflects model agreement on light northerly flow, limited marine-layer influence, and ample June solar insolation under stable high pressure. Slight probability mass in adjacent ranges captures forecast uncertainty from minor variations in afternoon cloud cover or boundary-layer mixing, which can shift the peak by 1–3°F. Broader context of an anomalously warm early summer—driven by persistent ridging—adds modest upside bias, yet the short-range outlook remains tightly constrained by the official forecast. New model runs and NWS updates through tonight will be the key near-term catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seattle on June 19?
80-81°F 31%
82-83°F 25%
78-79°F 14%
84-85°F 11.1%
71°F or below
<1%
72-73°F
1%
74-75°F
2%
76-77°F
6%
78-79°F
14%
80-81°F
31%
82-83°F
25%
84-85°F
11%
86-87°F
6%
88-89°F
1%
90°F or higher
<1%
80-81°F 31%
82-83°F 25%
78-79°F 14%
84-85°F 11.1%
71°F or below
<1%
72-73°F
1%
74-75°F
2%
76-77°F
6%
78-79°F
14%
80-81°F
31%
82-83°F
25%
84-85°F
11%
86-87°F
6%
88-89°F
1%
90°F 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 Seattle-Tacoma International Airport Station, 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 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 Fahrenheit (eg, 21°F). 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 17, 2026, 9:03 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
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 Seattle-Tacoma International Airport Station, 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 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 Fahrenheit (eg, 21°F). 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/us/wa/seatac/KSEAResolver
0x69c47De9D...National Weather Service guidance currently projects a mostly sunny Juneteenth high near 80°F for Seattle, anchoring trader consensus around the 80-81°F and 82-83°F bins. This reflects model agreement on light northerly flow, limited marine-layer influence, and ample June solar insolation under stable high pressure. Slight probability mass in adjacent ranges captures forecast uncertainty from minor variations in afternoon cloud cover or boundary-layer mixing, which can shift the peak by 1–3°F. Broader context of an anomalously warm early summer—driven by persistent ridging—adds modest upside bias, yet the short-range outlook remains tightly constrained by the official forecast. New model runs and NWS updates through tonight will be the key near-term catalysts.
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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