Current National Weather Service and NOAA model guidance shows scattered showers and thunderstorms driven by a lingering frontal boundary and Gulf moisture, with highest probabilities across parts of the eastern and central United States on August 21. Official outlooks indicate patchy rain possible in the Northeast and Midwest, with localized heavier amounts where instability peaks, while the West Coast and Southwest remain largely dry under high pressure. Forecasters emphasize that convective timing and exact coverage remain uncertain within the day’s resolution windows, with new hourly updates from local NWS offices and revised model runs expected to refine precipitation fields. Historical August patterns show similar variability tied to weak steering flow.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jourOù va-t-il pleuvoir le 21 août ?

New York, NY
50%

Los Angeles, CA
49%

Chicago, IL
50%

Houston, TX
50%

Dallas, TX
50%

Phoenix, AZ
50%

Philadelphie, PA
50%

Denver, CO
50%

Washington, DC
51%

Atlanta, GA
51%

Miami, FL
50%

Seattle, WA
6%

Boston, MA
51%

La Nouvelle-Orléans, LA
50%

San Francisco, CA
7%
$947 Vol.

New York, NY
50%

Los Angeles, CA
49%

Chicago, IL
50%

Houston, TX
50%

Dallas, TX
50%

Phoenix, AZ
50%

Philadelphie, PA
50%

Denver, CO
50%

Washington, DC
51%

Atlanta, GA
51%

Miami, FL
50%

Seattle, WA
6%

Boston, MA
51%

La Nouvelle-Orléans, LA
50%

San Francisco, CA
7%
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.
Marché ouvert : Aug 21, 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 National Weather Service and NOAA model guidance shows scattered showers and thunderstorms driven by a lingering frontal boundary and Gulf moisture, with highest probabilities across parts of the eastern and central United States on August 21. Official outlooks indicate patchy rain possible in the Northeast and Midwest, with localized heavier amounts where instability peaks, while the West Coast and Southwest remain largely dry under high pressure. Forecasters emphasize that convective timing and exact coverage remain uncertain within the day’s resolution windows, with new hourly updates from local NWS offices and revised model runs expected to refine precipitation fields. Historical August patterns show similar variability tied to weak steering flow.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jour

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