Monday will see warmest temperatures of the week in Toronto, but wet weather to follow - Toronto Star

If it feels like summer never left, the numbers back you up. This week brought a fresh wave of record-breaking heat across the country, even as calendars flip toward Halloween. How hot has it been? In a word: hot. According to U. S. National Climatic Data Center (NCDC), we have seen more than 600 daily high records tied or broken in the past week, primarily across the central and eastern U. S. Another 700 daily warm low records were tied or broken as well, so there was little relief when the sun went down.(MORE: These cities will see the biggest temperature drops)St. Louis nearly tied its all-time October heat record, hitting 93 degrees at Lambert International Airport. Its all-time record is 94 degrees, set back in 1953. The 93 degrees did shatter a daily record that had been in place for over 100 years, dating back to 1899. Get More of Our News on GoogleSet The Weather Company as a 'Preferred Source' to get quicker access to the news you value. The Twin Cities saw back-to-back record days, reaching 90 on Oct. 10 and 11 and running more than 20 degrees above the historical average. Denver has seen its longest streak of 80-plus-degree days in October since record-keeping began.

The current El Niño has now been confirmed as the strongest ever observed, with sea surface temperatures in the critical Niño 3.4 region of the equatorial Pacific surpassing all previous records. This area, where NOAA officially monitors ENSO patterns, registered a record-breaking temperature of +29.822°C on September 25, edging out the previous high of +29.82°C set on November 17, 2015. Remarkably, this milestone has been reached nearly two months ahead of the typical peak of El Niño events — a phenomenon that is continuing to intensify. DON'T MISS: Latest forecast calls for a historic El Niño to peak this winterCurrent forecasts suggest this El Niño will reach its peak between late fall and early winter, potentially adding further strength to its already significant impacts. Why does this matter? The unprecedented marine heatwave created by this event is expected to fuel Pacific hurricanes and could contribute to heat, flooding, and drought patterns worldwide. El Niño’s widespread influence underscores the importance of closely monitoring its progression. WATCH: A strengthening El Nino impacts fall & winter across CanadaWith files from MétéoMédia