San Gabriel Mountains Weather
Weather and climate details for destinations in San Gabriel Mountains. Across the 6 places we track here, summer afternoons range from 72°F at Crystal Lake Recreation Area to 80°F at Mount Wilson, a 8°F spread.
Standouts
Warmest summer afternoons
80°F
Mount Wilson has the warmest summer afternoons, averaging 80°F at the warmest hour.
Coolest summer afternoons
72°F
Crystal Lake Recreation Area has the coolest summer afternoons, averaging 72°F.
Windiest summer afternoons
9 mph
Icehouse Canyon is the windiest on summer afternoons, averaging 9 mph.
Compare all 6 places
| Place | Summer afternoons | Winter lows | Summer morning fog | Summer afternoon wind |
|---|---|---|---|---|
| Mount WilsonViewpoint · 5,692 ft | 80°F | 44°F | 3% | 6 mph |
| ChilaoViewpoint · 5,312 ft | 79°F | 40°F | 1% | 8 mph |
| Red BoxViewpoint · 5,367 ft | 75°F | 45°F | 4% | 7 mph |
| Mount Baldy VillageViewpoint · 4,236 ft | 74°F | 40°F | 0% | 9 mph |
| Icehouse CanyonTrailhead · 5,082 ft | 74°F | 40°F | 0% | 9 mph |
| Crystal Lake Recreation AreaViewpoint · 5,535 ft | 72°F | 38°F | 1% | 9 mph |
Summer afternoons, fog, and wind are June to August averages from NOAA’s HRRR model, hour by hour. Fog is the share of hours from 6 to 10 AM with fog. Winter lows are December to February averages.