Keep in mind we're still a ways out so things could change, but you might want to toss in a rain coat. 
However, with some moisture on the ground, it's going to make some of the trails very interesting.

NOAA said:Wednesday: A slight chance of showers. Partly sunny, with a high near 66.
Wednesday Night: Partly cloudy, with a low around 40.
Thursday: Mostly sunny, with a high near 69.
Thursday Night: A slight chance of showers. Partly cloudy, with a low around 45.
Friday: A slight chance of showers. Partly sunny, with a high near 69.
Friday Night: A slight chance of showers. Mostly cloudy, with a low around 43.
Saturday: A slight chance of showers. Partly sunny, with a high near 63.
However, with some moisture on the ground, it's going to make some of the trails very interesting.