Recent National Weather Service forecasts and ensemble model guidance point to a daytime high in the low 70s°F for Los Angeles on May 18, driven by onshore flow and a strengthening marine layer that typically caps temperatures along the coast. This aligns with the market's concentration around 70-73°F while the broad distribution reflects uncertainty from variable sea-breeze timing and potential late-day clearing. Climatologically, mid-May highs average near 74°F, but persistent stratus or stronger westerly winds could keep readings closer to 68-69°F, whereas any delay in the marine push might allow brief warming toward 74°F or higher. Updated model runs and the next NWS forecast discussion will provide the clearest signals ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Los Angeles on May 18?
70-71°F 34%
68-69°F 24%
72-73°F 22%
74°F or higher 13%
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
<1%
62-63°F
1%
64-65°F
3%
66-67°F
4%
68-69°F
24%
70-71°F
34%
72-73°F
22%
74°F or higher
13%
70-71°F 34%
68-69°F 24%
72-73°F 22%
74°F or higher 13%
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
<1%
62-63°F
1%
64-65°F
3%
66-67°F
4%
68-69°F
24%
70-71°F
34%
72-73°F
22%
74°F or higher
13%
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 Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
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.
Market Opened: May 16, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXThe 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 Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
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.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXRecent National Weather Service forecasts and ensemble model guidance point to a daytime high in the low 70s°F for Los Angeles on May 18, driven by onshore flow and a strengthening marine layer that typically caps temperatures along the coast. This aligns with the market's concentration around 70-73°F while the broad distribution reflects uncertainty from variable sea-breeze timing and potential late-day clearing. Climatologically, mid-May highs average near 74°F, but persistent stratus or stronger westerly winds could keep readings closer to 68-69°F, whereas any delay in the marine push might allow brief warming toward 74°F or higher. Updated model runs and the next NWS forecast discussion will provide the clearest signals 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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