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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:
N/A*
61°F
67°F
64°F
67°F
68°F
N/A*
* Weather report not
current
San Jacinto Forecast
Wednesday, September 16, 2026
This afternoon in San Jacinto, the weather will be sunny and pleasant, with temperatures climbing to near 84° this afternoon before easing back to around 56° tonight. Patchy fog may develop after 11pm, but no active alerts are in effect. Tomorrow starts with patchy fog before 8am, then turns mostly sunny with a high near 85°. Friday stays sunny and a little warmer, with a high near 87°, followed by clear skies Friday night and a low around 59°. The weekend looks bright and warm, with sunshine and highs near 91° Saturday and near 90° Sunday, then mostly clear nights with lows in the upper 50s to lower 60s. Early next week stays sunny as well, with highs near 86° Monday and near 91° Tuesday. Today: Sunny , high near 83°F . Pollen level is rated "low-medium". Predicted air quality is good, AQI: 44 (courtesy of the SCAQMD). Tonight: Mostly clear, low around 57°F. Thursday: Sunny, high of about 84°F. Thursday night:Clear, low near 58°F. Friday: Sunny, high around 87°F. Friday night: Clear, low of about 60°F. Saturday: Sunny, high near 91°F. Saturday night: Clear, low around 62°F. Sunday: Sunny, high of about 89°F. Sunday night: Mostly clear, low near 59°F. Monday: Sunny, high around 86°F. Monday night: Clear, low of about 59°F. Tuesday: Sunny, high near 90°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
Extreme heat returns to SoCal; Thunderstorms hit Temecula
Triple-digit heat has returned to the region Tuesday, prompting the Nationa ... Posted September 8, 2026, 9:26 PMOther Weather Information
National Weather Service
Other San Jacinto Weather Forecasts
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