Niagara Falls' Oct. 3 forecast: Mainly sunny1 report from 1 outlet in 1 language · first reported 2026-10-03 10:03 UTC · updated 2026-10-03 10:03 UTC · JSONWeatherNiagara FallsReportsNiagara Falls' Oct. 3 forecast: Mainly sunnyniagarafallsreview.ca · en · 2026-10-03 10:03 UTC