Simi Valley Forecast Summary
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Data captured from a Peet Bros. Ultimeter 2100
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Simi Valley Forecast
Sunday, April 13, 2025
![]() More marine influence and stronger onshore flow will continue a gradual cooling trend. Night and morning low clouds and fog with patchy drizzle at times will be a staple of the forecast. Low clouds will push into the coastal slopes of the mountains by Tuesday. A cold upper level low pressure system will bring additional cooling and a chance of showers to the area between late Thursday and early Saturday. And afternoon or evening thunderstorms cannot be ruled out during that time. Today: Sunny. Light breezes , high near 72°F . Pollen level is rated "medium-high". Predicted air quality is moderate, AQI: 56 (for Simi Valley and Moorpark (courtesy of the VCAPCD)). Tonight: Increasing clouds. Cool. Light breezes, low around 48°F. Monday: Patchy fog early, otherwise mostly sunny. Light breezes, high of about 75°F. Monday night:Mostly cloudy, then patchy fog and drizzle developing. Light breezes, low near 47°F. Tuesday: Mostly sunny. Afternoon breezes, high around 70°F. Tuesday night: Partly cloudy and cool, low of about 48°F. Wednesday: Partly sunny, high near 66°F. Wednesday night: Partly cloudy and cool, low around 47°F. Thursday: Partly sunny, high of about 63°F. Thursday night: Mostly cloudy and cool. Slight chance of showers after midnight, low near 48°F. Friday: Partly sunny. Slight chance of showers, high around 63°F. Friday night: Partly cloudy and cool, low of about 46°F. Saturday: Sunny, high near 68°F. Simi Valley forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.Recently in
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Cloud Stream: As seen near the Santa Susana pass, from the 118 freeway. Photo courtesy of Gabe Medrano.
Simi Valley
Weather News
Thunderstorms bring rain to some inland communities Thursday evening
Isolated showers and thunderstorms began forming over the eastern mountain ... Posted April 4, 2025, 1:41 PMOther Weather Information
National Weather Service
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