Weather in Mount Hamilton, CA
Updated 2026-09-26 09:45 local time · ZIP codes 95140
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
64°0% rain73°0% rain76°1% rain
78°8% rain79°9% rain79°9% rain77°9% rain75°9% rain70°8% rain
63°7% rain
58°7% rain
56°13% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 13%).
It feels like 58°F with winds near 3 mph.
69°F, 0% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 15 mph.
Current temperature is 64°F, wind 3 mph, rain chance up to 13%.
UV index is 1.
Local weather characteristics in Mount Hamilton
California weather varies from cool marine conditions along parts of the Pacific coast to hot inland valleys, deserts and snowy mountain climates. Short distances can produce large temperature differences.
Mount Hamilton is part of the West weather region. The forecast point is near 37.31°N latitude and 121.47°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Mount Hamilton weather today
Sunny and 64°F in Mount Hamilton, CA. Today's high is 79°F with a 3% rain chance. Winds are around 3 mph with gusts near 14 mph. Relative humidity is 25%, pressure is 29.93 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Mount Hamilton
Sunrise is at 06:57 AM and sunset is at 06:57 PM. Tomorrow's forecast calls for Sunny with a high near 73°F and a low near 49°F. The maximum rain chance is 6%.