Why can't I resize the weather widget?

I deleted the weather and time widget by mistake and then when putting it back it didn't give me the blue borders. It was 4×2 but now it is 4×1 and i can't resize it. Does anyone know how to resize it. I am using the samsung galaxy s6 edge. Does this have to do with the new update?

Long-press it. If there's no 'Resize', you chose the 4X1 widget, not the 4X2 widget. Delete the one you have and choose the larger one.