The National Weather Serivce (weather.gov) has 'point forecasts' - you can click on a specific location and get a 'grid' forecast, about 1 or 2 km square (so the altitudes might be approximated in areas of extreme topography, watch that...).
For example, here's Tuolumne Meadows:
Tuolumne Meadows Forecast. That topo map in the middle-right is draggable and clickable - assuming you're on a desktop it works great. It's possible but painful to get it to work on an iPad.
3 or 4 days out...there may or may not be some uncertainty. So...lower left of the page, note the Forecast Discussion link - it brings up the technical discussion, from which you might get a sense of how uncertain the forecast is, and what the range of that uncertainty is (e.g.: 30% chance of rain could mean a high likelihood of scattered showers covering 30% of the area, or it could mean a 30% chance of a widespread dump and 70% of sun).
Hanford Weather Office Forecast Discussion.