BIRMINGHAM, Ala. ( WBRC ) - Good morning!

FIRST FROST: We’ve declared a First Alert Weather Day for the Frost Advisory for all of central and north Alabama.

The Frost Advisory is in place from now until 9 a.m. Temperatures are in the mid- and upper 30s under a clear sky.

HALLOWEEN: The average high temperature for Halloween is around 70, so we are slightly cooler this year, as afternoon temperatures will hold in the 60s with good sunshine.

Trick-or-treating will be cool, with temperatures in the 40s, and no rain. Overnight lows could tumble into the upper 30s by Saturday morning, with a chance for patchy frost north.

THE WEEKEND AHEAD: The weekend forecast is a bit tricky.

An upper-level low is developing and will track across the Tennessee River Valley, bringing us a few sh

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