Not many changes:
Thursday night: 20, 2-5″ of snow. The Korteloppet will be soft!
Friday for the Korte: snow tapering in the morning, potentially becoming freezing drizzle (fast, glazing, and just nasty waxing conditions for kick), highs around 30. Mostly cloudy, light winds.
Friday night: lows near 10, so the snow may have a chance to set up. The Birkie will still probably be pretty soft. Get those fluoros out.
Birkie: teens rising in to the 20s. Winds light becoming east/southeast (tailwind on the Lake!). Snow beginning some time in the afternoon becoming heavy in the evening.
Sunday: Great day for a post-race ski.