Roller coaster temperatures have been the norm so far this January, and that is going to continue through the next 7 days. We enter a downturn tomorrow after a dry cold front works through tonight and ushers in some colder air. Highs tomorrow will push 50 with lows Saturday morning bottoming out in the 20s.
The upswing starts as quickly as the downswing arrives as highs return to the 50s for the weekend with 60s by Monday as warmer air returns ahead of our next cold front. This one may be able to squeeze out a shower or two Monday into Tuesday as it passes, but no major rain is expected.
Behind this front, another downturn as temperatures head back to the 40s starting on Wednesday, and they look to remain in the 40s through at least Thursday.
We are stuck in a period of a trough over the eastern two thirds of the United States (a positive Pacific-North America Index) which is why we keep getting reinforcing cold spells. The rest of the month of January looks to remain below normal temperatures wise (according to the Climate Prediction Center), but the good news is February looks to be warmer than normal according to the CPC.