Brief Dense Fog Tonight... The combination of cold ground temperatures, a milder airmass overspreading our region, and recent rainfall is contributing to patchy dense fog for areas along and north of I-64 tonight. This fog is expected to dissipate/lift north over the next 2-3 hours as heavier rainfall and stronger winds arrive from the south. In the meantime, however, use caution if traveling late tonight and be prepared for changing visibility. Low beam headlights are recommended in foggy areas.