California Institute of Technology

• NOAA's current weather conditions in Bishop
• Bishop forecast (4,198')
• Big Pine forecast (4,048')
• Big Pine Creek forecast (10,496')
• Palisades area forecast (11,795')
• Forecast discussion from San Joaquin Valley / Hanford, CA forecast center
• Forecast discussion from Las Vegas forecast center
• Weathercentral.com forecast for Bishop, CA
• Weather.com weekend forecast for Bishop, CA

• Lone Pine (3,759')
• Near Whitney Portal (9,715')
• Whitney area (11,926')
• Whitney area (12,697')
• Forecast discussion from Las Vegas forecast center

• near Lost Horse (4,221') [from Phoenix forecast center]
• near the town of Joshua Tree (2,700') [from Las Vegas forecast center]
• Forecast discussion from Phoenix forecast center
• Forecast discussion from Las Vegas forecast center

• Pasadena (800')
• Forecast discussion from LA forecast center
• Tahquitz/Idyllwild (8,000')

Forums and message boards

• Whitney Portal Store forums. For the Whitney region, this is the best forum (it's very active). However, topics are mainly about the Whitney Trail. A great resource if you're trying to climb Whitney for the first time.
• mt-whitney.info, self-described as for "Mt. Whitney, The Sierra Nevada, & Beyond...". It has dedicated topics on Mt. Whitney, Mt. Williamson/Tyndall, Palisades, White Mountain, Shasta, John Muir Trail and PCT, Desert Peaks, and SoCal peaks. Unfortunately, it's not very active.
• Summitpost.org's California Forums.
• Mt. San Jacinto Outdoor Recreation forums. Pretty active.
• High Sierra Topic, with forums divided by activity, not region. Also not very active.
• Cascade Climbers, a very active forum with many sections, including gear sections. Obviously geared toward Cascade climers, it does have a dedicatd message board for California topics, but this is mainly Yosemite and Shasta related.