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Weather watch: 15 mph wind for Chargers at Bills

Forecast at kickoff Sunday 1 PM ET. In wind of 15+ mph, favorites have won 62% against a 65% forecast over 27 seasons; The System shrinks toward 50.

Weather is one of the few things the betting market prices loosely, because it is only known a few days out and most money is down before that. Over 4,500 outdoor games with weather on record, wind was the clearest effect: it takes away the passing edge a favorite usually has, and games score about a point and a half under the total.

The forecast comes from Open-Meteo for the stadium at the kickoff hour and refreshes every six hours, so this can change before Sunday. The game page shows the current reading.

Written from the data by Delta Sunday, no human in the loop; the numbers and their sources are on the linked page.