Simi Valley Forecast Summary
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Data captured from a Peet Bros. Ultimeter 2100
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Simi Valley Forecast
Thursday, July 24, 2025
![]() Persistent troughing over the California coast will keep an onshore flow pattern in place through at least the weekend. Night and morning low clouds and fog will continue to be a staple of the forecast for most coast and some valley locations through Sunday. Temperatures will run below seasonal normals into early next week, then a warming trend should start to develop as onshore flow weakens. Today: Sunny. Warm and breezy , high near 80°F . Pollen level is rated "low-medium". Predicted air quality is good, AQI: 40 (for Simi Valley and Moorpark (courtesy of the VCAPCD)). Tonight: Mostly clear and breezy, low around 52°F. Friday: Mostly sunny and breezy, high of about 77°F. Friday night:Mostly clear and breezy, low near 53°F. Saturday: Mostly sunny and breezy, high around 76°F. Saturday night: Mostly clear and breezy, low of about 53°F. Sunday: Sunny and warm, high near 80°F. Sunday night: Mostly clear, low around 56°F. Monday: Sunny and warm, high of about 84°F. Monday night: Mostly clear, low near 58°F. Tuesday: Sunny and warm, high around 86°F. Tuesday night: Mostly clear, low of about 59°F. Wednesday: Sunny and warm, high near 86°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
Early morning thunderstorms rock inland and coastal communities Friday
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