U.S. Postal Service letter carriers have a cold job this time of year. Ethan Case carried mail mid-morning Friday when the air temperature was eight degrees and the wind chill was minus 2.

U.S. Postal Service letter carriers have a cold job this time of year. Ethan Case carried mail mid-morning Friday when the air temperature was eight degrees and the wind chill was minus 2. The National Weather Service predicted a brief reprieve with low temperatures staying above single digits Sunday night; however, more cold is on its way with a low of minus 4 expected tonight, and an overnight low of minus 2 Tuesday night. Highs are to reach 17 today and 10 on Tuesday.