Let's skip the weather, it is awful, so here are some events you should consider when planning the weekend:
Children's Workshop – Budding Artists & Hardy Annuals in the National Botanic Gardens - 17th Jan
http://www.botanicgardens.ie/news/events.htm#17jan
Coder Dojo at the Science Gallery (for 10-18 year-olds) - 17th Jan
https://dublin.sciencegallery.com/events/2015/01/coderdojo0
Tiny Tot Workshop at the National Gallery - 17th Jan
http://www.nationalgallery.ie/whatson/Families/TinyTots/January_17_TinyTot.aspx
Family Workshop at the National Gallery - 17th Jan
http://www.nationalgallery.ie/en/whatson/Families/Family_Programme/January_17_Family.aspx
Re-enactment: Irish Free State Army Foot Drills at the National Museum of Ireland (Decorative Arts & History) - 17th Jan
http://www.museum.ie/en/list/calendar-of-events.aspx?eventID=4552
Master Craftsmen: Make a Medieval Tile at the National Museum of Ireland (Archeology) - 17th Jan
http://www.museum.ie/en/list/calendar-of-events.aspx?eventID=4553
Ice Skating in Blanchardstown - 21st Nov - 18th Jan
Have fun! :)