About a year ago we stumbled across the California Department of Water Resources website. It gives you access to remote snow, temperature, wind and water flow sensors all over the state, and we have found them invaluable for planning mtn. bike, skiing, kayaking, fishing and backpacking trips.
Below are the links to a couple of these snow and weather sensors in the Butte Meadows area, as well as a few other weather and cross-country skiing related sites.

Butte Meadows (BTM)
Humbug Valley (HMB)
Bucks Lake (BKL)
Current Chico Temperature (CHI)
Current Cohasset Temperature (CST)
California Department of Water Resources Home Page
CalTrans Highway Conditions
Chico Cross Country Ski Club
Royal Gorge Cross Country Ski Area Conditions
Eagle Mountain Cross Country Ski & Mtn. Bike Park Conditions