Weather Forecast for Rock Spring Hike

Here is what the National Weather Service is predicting (as of 7:41 am on Sunday) for the general area around Mt. Tam:

The overnight low between Monday evening and Tuesday morning will be about 49, so temperatures may be in the mid-50's when we start off on our hike. For the afternoon, NWS calls for sunny skies with a high near 78 and west to northwest winds at 5-10 mph. (Remember that Wendy says this hike is mostly shady, so it may be a bit cooler as we hike on the mountain).

(If you click on this link to the NWS, you may be able to get a more updated forecast).