The 10-day span for Guerneville runs from a high near 33° on Friday down to 8° overnight on Monday. Essentially no rain is in the forecast — expect a dry stretch. The NWS alert board for this area is currently clear. Right now Guerneville is running about 38° warmer than San Francisco. Longer view: marine climate — mild, showery winters and dry, gentle summers.
Guerneville, CA · Elev 59 ft · 38.50°N, 123.00°W · California · Forecast computed for these exact coordinates