It is wise to know about the general climatic conditions as well as weather forecasts of Anaheim before you plan to make your trip to this world famous tourist destination. Weather is mostly temperate in the Los Angeles area.
During summer, day temperature does not exceed the mid-80's, while during the winter months, day temperatures do not go below 70's. Winter may bring in rains, though not in the same quantity as in other areas of U.S.A. It is always best to check on the weather forecast before you plan to make your trip.
Do always remember that during evenings, even on very hot days, weather can be reasonable chilly in Anaheim. If you are planning to wear shorts, do bring in sweatpants too to be worn in the evening. A little bit of advance planning and checking on the weather conditions would go a long way in making for a successful trip to Disneyland Anaheim.
http://micechat.com/forums/disneyland-resort/118455-anaheim-residents-how-weather-disneyland.html
http://www.disneymouselinks.com/Monthly-Weather-at-Disneyland.aspx
http://www.anabellahotel.com/weather.htm