Current model consensus from the National Weather Service and ensemble guidance indicates scattered convective showers and light precipitation possible across parts of the Northeast and Midwest on August 20, 2026, while much of the West and Southwest remain under drier high-pressure influence with limited moisture return. This synoptic setup, featuring a building ridge over the central U.S. and weak frontal boundaries or diurnal heating-driven thunderstorms elsewhere, underpins the closely matched market-implied odds near 50% for measurable rain in both New York and Los Angeles. Forecasters note typical August convective uncertainty, where afternoon instability and sea-breeze interactions can shift totals quickly, with official airport observations serving as the resolution benchmark. Updated short-range model runs and local NWS discussions expected later today represent the next key data points for traders assessing precipitation probability shifts.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoOnde vai chover no dia 20 de agosto?

Nova York, NY
93%

Los Angeles, CA
50%

Chicago, IL
50%

Houston, TX
50%

Dallas, TX
50%

Phoenix, AZ
50%

Filadélfia, PA
50%

Denver, CO
50%

Washington, DC
50%

Atlanta, GA
50%

Miami, FL
50%

Seattle, WA
50%

Boston, MA
50%

Nova Orleans, LA
50%

San Francisco, CA
50%
$79 Vol.

Nova York, NY
93%

Los Angeles, CA
50%

Chicago, IL
50%

Houston, TX
50%

Dallas, TX
50%

Phoenix, AZ
50%

Filadélfia, PA
50%

Denver, CO
50%

Washington, DC
50%

Atlanta, GA
50%

Miami, FL
50%

Seattle, WA
50%

Boston, MA
50%

Nova Orleans, LA
50%

San Francisco, CA
50%
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
Resolution is based on the station's first published precipitation figure for the day. Subsequent revisions or corrections to the published data will not be considered; the first published value is final. If no figure has been published by 11:59 PM ET on the day following the observation date, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC.
Mercado Aberto: Aug 20, 2026, 7:09 AM ET
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
Resolution is based on the station's first published precipitation figure for the day. Subsequent revisions or corrections to the published data will not be considered; the first published value is final. If no figure has been published by 11:59 PM ET on the day following the observation date, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC.
Current model consensus from the National Weather Service and ensemble guidance indicates scattered convective showers and light precipitation possible across parts of the Northeast and Midwest on August 20, 2026, while much of the West and Southwest remain under drier high-pressure influence with limited moisture return. This synoptic setup, featuring a building ridge over the central U.S. and weak frontal boundaries or diurnal heating-driven thunderstorms elsewhere, underpins the closely matched market-implied odds near 50% for measurable rain in both New York and Los Angeles. Forecasters note typical August convective uncertainty, where afternoon instability and sea-breeze interactions can shift totals quickly, with official airport observations serving as the resolution benchmark. Updated short-range model runs and local NWS discussions expected later today represent the next key data points for traders assessing precipitation probability shifts.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado

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