DES MOINES, Iowa — Foggy conditions on Thursday will give way to wet weather for the start of the last weekend of December. Dense fog will continue to persist in parts of eastern, central and north central Iowa through mid-afternoon.

Temperatures will be mild, just above average in the upper 30s to low 40s during the day. Temperatures will inch up to the mid 40s overnight through Friday morning.

Rain will replace the fog overnight with the development of scattered showers. Steady rain will fall during the day on Friday.

The rain is due to an area of low pressure lifting north with plenty of moisture and warmer temperatures.

More than a half inch of rain may fall in parts of central Iowa by late Friday night.

Temperatures will go warmer during the weekend reaching the upper 40s to 50 degrees. This is about 15 to 20 degrees warmer than average. Typical late December high temperatures are in the low 30s. It will be drier for the weekend with even more sun by Sunday.