We are starting our weekend off on a downright cold note! Frost advisory in effect for Saturday morning in the Northern Tier with temperatures at or even below freezing. Skies are clear and winds are calm allowing for our temperatures to bottom out. Highs on Saturday reaching the upper 50s to around 60. Skies remain mostly sunny so any outdoor plans are a go for the day! Bring a jacket heading out the door and stay warm this morning.