I have been there twice at that time and will be going again this year. Bring HOT and CHILLY clothes since the weather can change (and you'll be prepared). Normally it is just gorgeous, as the others have posted.
According to Yahoo:
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October:
Avg. High / Avg. Low / Avg. Precip. / Rec. High / Rec. Low
84.6° F / 65.8° F / 2.4 in / 95° F (10/06/1986) / 44° F (10/31/1993)
November:
Avg. High / Avg. Low / Avg. Precip. / Rec. High / Rec. Low
78.5° F / 57.5° F / 2.3 in / 89° F (11/05/1992) / 35° F (11/22/1981)
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