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San Jacinto Forecast Summary
Currently in San Jacinto
Temperature, Humidity, Wind & Pressure
Sunrise & Sunset
Extreme Temperatures
Precipitation
Data captured from a Davis Instruments Vantage Pro 2
Local Weather Roundup
San Jacinto:
60°F
59°F
61°F
59°F
60°F
64°F
N/A*
* Weather report not
current
San Jacinto Forecast
Wednesday, September 2, 2026
This afternoon in San Jacinto, the weather will be sunny and warm, with temperatures climbing to near 89° and a southwest breeze around 15 mph, with gusts near 25 mph. Skies stay clear this evening as temperatures ease back to around 67°, then cool to around 57° overnight. Tomorrow will be sunny and a touch cooler, with a high near 87° and a light southwest breeze at times. Friday stays sunny and slightly warmer near 88°, then a slight chance of rain showers arrives late Friday night with a low around 63°. Looking ahead to the weekend, a chance of showers returns Saturday, with rain showers likely Saturday night. Sunday brings more showers and a few thunderstorms possible, and that unsettled pattern continues into Labor Day before drier, sunnier weather starts to build back in by Tuesday, with highs near 91°. Today: Sunny , high near 89°F . Pollen level is rated "low-medium". Predicted air quality is good, AQI: 44 (courtesy of the SCAQMD). Tonight: Clear, low around 57°F. Thursday: Sunny, high of about 87°F. Thursday night:Clear, low near 56°F. Friday: Sunny, high around 88°F. Friday night: Increasing clouds, low of about 63°F. Saturday: Cloudy with a 30% chance of showers, mainly after noon, high near 90°F. Saturday night: Cloudy with a chance of showers, low around 67°F. Sunday: Mostly cloudy with a continued chance of showers and thunderstorms, high of about 87°F. Sunday night: Partly to mostly cloudy with a chance of showers, low near 67°F. Monday: Mostly cloudy with a slight chance of showers, high around 89°F. Monday night: Partly cloudy with a chance of showers, low of about 65°F. Tuesday: Mostly sunny after early morning clouds depart region, high near 91°F. San Jacinto forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.Recently in
San Jacinto
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San Jacinto
Featured Photos
Full moon: The evening moon rises above Mountain View High School in San Jacinto. Photo courtesy of Denise Leonard.
San Jacinto
Weather News
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