Officials urge safety precautions for supplemental heating devices How low will temperatures go? The National Weather Service is predicting wind-chill values down to -12 Monday night with a west wind of 21 to 24 mph and gusts as high as 41 mph. On Tuesday, Jan. 7, the mercury is not expected to exceed 11 with wind chills down to -13 during the day and -8 at night. A warmup of sorts is predicted...