@mark88
MWIS suggests half-decent conditions over the weekend north of the border, so Aviemore should be OK on the whole.
“hail and snow falling to lower elevations in Scotland. Likely to stay chilly into the weekend, sub-zero on tops plus frost overnight into valleys and glens. Some local upland snowfalls possible, although high pressure nearby is likely to bring a fair amount of dry and bright weather plus wind speeds tending to ease.”
You have access from Aviemore to several of the highest Munros apart from Ben Nevis. The shortest day out is probably Cairn Gorm itself, optionally extending SW over Cairn Lochan and back via the spurs to the west of the Northern Corries. Or an out-and-back to Beinn MacDuibh if the tops are clear – that can become a long day, mind. Carn Ban Mhor & Sgorr Gaoith from the carpark in Glen Feshie would be reasonable too. There are plenty of other options around the area.