Parts of southern Ontario, including the outskirts of the GTA, will see their first frost of the season early Friday morning. Weather Network meteorologist Dr. Doug Gillham has everything you need to know.
Expected Max UV Observation:
This is today's expected maximum UV reading, taking today's weather into consideration.
- Minimal sun protection required for normal activity
- Wear sunglasses on bright days. If outside for more than one hour, cover up and use sunscreen
- Reflection off snow can nearly double UV strength. Wear sunglasses and apply sunscreen