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Record heat likely Thursday as heat wave peaks with highs near 100 degrees

Highs near 100 and heat index values up to 110 will keep heat stress elevated, with damaging wind possible in a few storms, forecasters said.

  • On Friday, July 3, Environment Canada warnings remain in effect as the ongoing heatwave maintains dangerous conditions with heat index values reaching 108 degrees.
  • A stubborn high pressure system continues blocking cooler air over the region, driving temperatures to 96 degrees—the hottest day of the year—with humidity pushing feel-like temperatures to 108.
  • Residents should monitor for heat stroke symptoms including confusion and dizziness, and call 9-1-1 if they or others show signs of distress. Extreme heat poses significant risks for older adults and children.
  • While heat warnings persist through the 4th of July, isolated showers and thunderstorms may provide brief relief. Temperatures decrease slightly by Saturday, though humidity keeps conditions uncomfortable through the holiday weekend.
  • Drier air arriving Sunday brings a more noticeable break, with highs dropping into the upper 70s and mid-80s. Warm weather will linger into next week with daily chances for afternoon showers and thunderstorms.
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11 Articles

Newmarket TodayNewmarket Today
+7 Reposted by 7 other sources
Lean Left

Heat wave continues through Friday

Temperatures are expected to be between 31 and 35 degrees Celsius

·Orillia, Canada
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Bias Distribution

  • 82% of the sources lean Left
82% Left

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New Castle News broke the news on Thursday, July 2, 2026.
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