First published Oct 16, 2026, 3:02:15 PM UTC · Last updated Oct 16, 2026, 3:02:15 PM UTC

Frost (advisory) - City of Toronto

An advisory says temperatures in Toronto are expected to reach near or slightly below freezing overnight into Saturday morning, particularly north of Highway 401. Cold-sensitive plants, trees, and crops may be damaged; the advisory recommends taking preventative measures.

Why it matters

The advisory gives Toronto residents notice to protect cold-sensitive plants, trees, and crops before freezing temperatures arrive.

Location

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 3/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Environment Canada Weather Alerts Frost (advisory) - City of Toronto

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