The weather has been fairly mild recently, clocking in on average at about 12 degrees in the day, but tonight temperatures will drop.
Met Eireann predict that Dublin will be hit with a cold spell this evening, with mist and fog developing with some dense fog towards dawn, and some grass frost in rural areas.
Overnight lows of as little as 1 degree - Brrrr.
The coolness will continue into tomorrow morning, with a cool start with extensive mist and fog at first, lifting gradually during the morning but could linger in places into the afternoon.
Don't forget your winter coat!