Recent National Weather Service and ensemble model guidance place the June 20 overnight low in New York City near the June climatological normal of 68 °F, with guidance clusters favoring 66–69 °F. Breezy west-to-northwest flow and limited cloud cover are expected to moderate radiational cooling, while a warm, humid air mass limits deeper drops. Minor model spread arises from subtle differences in boundary-layer mixing and dewpoint forecasts, keeping adjacent bins closely matched in trader pricing. Updated NWS and high-resolution model runs tonight will refine the final range ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in NYC on June 20?
68-69°F 100.0%
57°F or below <1%
58-59°F <1%
60-61°F <1%
$26,483 Vol.
$26,483 Vol.
57°F or below
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70-71°F
No
72-73°F
No
74-75°F
No
76°F or higher
No
68-69°F 100.0%
57°F or below <1%
58-59°F <1%
60-61°F <1%
$26,483 Vol.
$26,483 Vol.
57°F or below
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70-71°F
No
72-73°F
No
74-75°F
No
76°F or higher
No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the LaGuardia Airport Station, available here: https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGA.
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 18, 2026, 9:30 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the LaGuardia Airport Station, available here: https://www.wunderground.com/history/daily/us/ny/new-york-city/KLGA.
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/ny/new-york-city/KLGAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent National Weather Service and ensemble model guidance place the June 20 overnight low in New York City near the June climatological normal of 68 °F, with guidance clusters favoring 66–69 °F. Breezy west-to-northwest flow and limited cloud cover are expected to moderate radiational cooling, while a warm, humid air mass limits deeper drops. Minor model spread arises from subtle differences in boundary-layer mixing and dewpoint forecasts, keeping adjacent bins closely matched in trader pricing. Updated NWS and high-resolution model runs tonight will refine the final range ahead of resolution.
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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Frequently Asked Questions