As if on cue, December is here -- and so are freezing temperatures in the extended forecast.

Sunday's daytime high is expected to reach 43 degrees, with a slight chance of showers before 10 a.m. giving way to partly sunny skies this afternoon.

But tonight may bring areas of freezing fog to parts of the metro area. Forecasters for the National Weather Service predict a nighttime low of 31 degrees and freezing fog after 10 p.m.

That 31-degree projection would mark the coldest temperature at Portland International Airport since March 6, when the low registered at 30. (November twice recorded lows of 32, incidentally).

This week is slated to bring more chilly nighttime temperatures. Tuesday's nighttime low is also pegged for 31 degrees while Wednesday night could drop down to 30 degrees.

That cold weather has one big upside: bright blue skies. Daytime fog is expected Monday. But the rest of the week should bring lots of sunshine.

-- Brad Schmidt

503-294-7628

@_brad_schmidt