Weather in Simi Valley, CA
Updated 2026-09-26 08:00 local time · ZIP codes 93063, 93065
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
72°13% rain75°12% rain80°10% rain
83°4% rain
86°1% rain88°0% rain89°1% rain88°7% rain86°3% rain83°8% rain78°10% rain
77°12% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Today vs yesterday in Simi Valley
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 13%).
It feels like 72°F with winds near 3 mph.
72°F, 13% rain chance and 3 mph wind.
Visibility is around 6 mi; gusts may reach 23 mph.
Current temperature is 72°F, wind 3 mph, rain chance up to 13%.
UV index is 0.
Local weather characteristics in Simi Valley
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.
Simi Valley is part of the West weather region. The forecast point is near 34.27°N latitude and 118.78°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.
Simi Valley weather today
Overcast and 72°F in Simi Valley, CA. Today's high is 89°F with a 6% rain chance. Winds are around 3 mph with gusts near 4 mph. Relative humidity is 60%, pressure is 29.89 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Simi Valley
Sunrise is at 06:46 AM and sunset is at 06:46 PM. Tomorrow's forecast calls for Sunny with a high near 85°F and a low near 65°F. The maximum rain chance is 2%.