I have added the links below so that you can check the extended weather forecast just prior to coming here for the Family Reunion. Mountain weather is very unpredictable!! It could be cold, or it could be hot. Whether Hot or cold expect up to 40-50 degree temperature changes between nighttime and day time. Thunder showers may or may not occur. Once it snowed in late July!!
http://www.weather.com/weather/us/zips/36hr/96137.html
http://www.weather.com/weather/cities/us_ca_lake_almanor.html
Jim