This week may require some extra wardrobe adjustments across Ontario as chilly overnight lows transition into mild, warming afternoons.

While some areas may even experience frost in the early mornings, this is not an indication of a full shift into cooler autumn weather just yet.

DON'T MISS: A TYPICAL SEPTEMBER SENDS CANADA HEAT, FROST, HURRICANES, AND SNOW

Mornings may feel brisk, but afternoon temperatures are expected to rise to seasonal levels for many.

FROST RISK FOR ALGONQUIN HIGHLANDS AND PARTS OF EASTERN ONTARIO INTO TUESDAY MORNING

After a brisk and chilly start to the week Monday morning, clear skies overnight will lead to heat loss from the surface, causing temperatures to drop steadily until sunrise again on Tuesday.

[Baron - Ontario predawn Tuesday temperature - Sept8] B

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