Rain and slushy snow are both tapering off this afternoon, but don’t expect a major turn-around today. Even on the far back edge of this departing storm, there is plenty of moisture. The biggest chunk of rain is right around Wall, Philip, Kadoka and Martin. There is some snow still flying over the southern Black Hills but most are right on the border between rain and snow (in the foothills).
Overcast skies will prevent us from any substantial warming today. High pressure is slowly moving into SD behind the system, much like it did over this past weekend. With clearing skies tonight and winds becoming lighter, fog is a possibility. The WNW winds, though lighter, should prevent WIDESPREAD fog development.
Another big story overnight will be plummeting temperatures. Lows drop into the upper 20s for areas in the north and over the SW corner of South Dakota. Lately, Custer and Spearfish have been markedly cooler than even Rapid City, due to snow and elevation.
Sunshine returns tomorrow. There should be some cirrus leftover in the north tomorrow, but that will clear out before too long. Despite the sun and lighter winds, we’re going to be below average by around five degrees. Thursday will be warmer ahead of a cold front arriving Friday. It’s definitely an up-and-down end to the week. We have a SLIGHT chance of more rain late Thursday or early Friday. FutureScan wants to paint some snow on the Hills Thursday but other tools keep it all light rain.
Saturday and Sunday should both be dry. Sunday looks like the warmer and sunnier day of the two. Expect another cool-down Monday, with isolated chances of rain the east for now.
After that, a HUGE pool of very cold air tries to wrap around a Canadian system by midweek.