Persistent marine layer intrusion and sustained onshore flow from the Pacific are anchoring trader expectations for a downtown Los Angeles high near 80 °F today, after recent heat-wave relief. National Weather Service point forecasts for the immediate Los Angeles basin and coastal stations such as KLAX show highs clustered around 78 °F under gradual clearing, with the layer’s depth and timing creating the narrow spread between the closely matched 78–79 °F and 80–81 °F bins that together exceed 70 % implied probability. Subtle differences in boundary-layer mixing, local wind shifts, and the exact official observation window distinguish these outcomes, while historical August climatology places normal highs near 84 °F. Updated model runs and final NWS verification tonight remain 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 Los Angeles on August 21?
Highest temperature in Los Angeles on August 21?
78-79°F 38%
80-81°F 34%
76-77°F 13%
82-83°F 9%
NEW
$28,173 Vol.
NEW
$28,173 Vol.
Aug 21, 2026
73°F or below
1%
74-75°F
2%
76-77°F
13%
78-79°F
38%
80-81°F
34%
82-83°F
9%
84-85°F
2%
86-87°F
<1%
88-89°F
<1%
90-91°F
<1%
92°F or higher
<1%
78-79°F 38%
80-81°F 34%
76-77°F 13%
82-83°F 9%
NEW
$28,173 Vol.
NEW
$28,173 Vol.
Aug 21, 2026
73°F or below
$6,829 Vol.
1%
74-75°F
$1,129 Vol.
2%
76-77°F
$4,374 Vol.
13%
78-79°F
$5,412 Vol.
38%
80-81°F
$5,340 Vol.
34%
82-83°F
$1,396 Vol.
9%
84-85°F
$1,106 Vol.
2%
86-87°F
$1,572 Vol.
<1%
88-89°F
$433 Vol.
<1%
90-91°F
$288 Vol.
<1%
92°F or higher
$313 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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.Persistent marine layer intrusion and sustained onshore flow from the Pacific are anchoring trader expectations for a downtown Los Angeles high near 80 °F today, after recent heat-wave relief. National Weather Service point forecasts for the immediate Los Angeles basin and coastal stations such as KLAX show highs clustered around 78 °F under gradual clearing, with the layer’s depth and timing creating the narrow spread between the closely matched 78–79 °F and 80–81 °F bins that together exceed 70 % implied probability. Subtle differences in boundary-layer mixing, local wind shifts, and the exact official observation window distinguish these outcomes, while historical August climatology places normal highs near 84 °F. Updated model runs and final NWS verification tonight remain the key near-term catalysts.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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: Aug 19, 2026, 9:57 PM ET
Volume
$28,173End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 9:57 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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.Persistent marine layer intrusion and sustained onshore flow from the Pacific are anchoring trader expectations for a downtown Los Angeles high near 80 °F today, after recent heat-wave relief. National Weather Service point forecasts for the immediate Los Angeles basin and coastal stations such as KLAX show highs clustered around 78 °F under gradual clearing, with the layer’s depth and timing creating the narrow spread between the closely matched 78–79 °F and 80–81 °F bins that together exceed 70 % implied probability. Subtle differences in boundary-layer mixing, local wind shifts, and the exact official observation window distinguish these outcomes, while historical August climatology places normal highs near 84 °F. Updated model runs and final NWS verification tonight remain the key near-term catalysts.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Los Angeles International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Los Angeles International Airport Station, 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 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.
Volume
$28,173End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 9:57 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXResolver
0x69c47De9D...Persistent marine layer intrusion and sustained onshore flow from the Pacific are anchoring trader expectations for a downtown Los Angeles high near 80 °F today, after recent heat-wave relief. National Weather Service point forecasts for the immediate Los Angeles basin and coastal stations such as KLAX show highs clustered around 78 °F under gradual clearing, with the layer’s depth and timing creating the narrow spread between the closely matched 78–79 °F and 80–81 °F bins that together exceed 70 % implied probability. Subtle differences in boundary-layer mixing, local wind shifts, and the exact official observation window distinguish these outcomes, while historical August climatology places normal highs near 84 °F. Updated model runs and final NWS verification tonight remain 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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