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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:
97°F
95°F
101°F
96°F
94°F
92°F
N/A*
* Weather report not
current
San Jacinto Forecast
Saturday, July 18, 2026
 Today's forecast is coming soon
Sunny skies and hot, near seasonal temperatures are predicted through the first half of the upcoming week, with temperatures increasing for the middle to the end of the week. Chances of afternoon showers and thunderstorms will decrease and remain confined to the higher mountain peaks for much of this week, with potential for more widespread activity for the latter half of the week. Marine layer will remain near the coast, reaching into the western portions of the valleys at times. Today: Sunny and hot. Afternoon breezes , high near 99°F . Pollen level is rated "low-medium". Predicted air quality is good, AQI: 47 (courtesy of the SCAQMD). Tonight: Mostly clear. Light breezes, low around 65°F. Sunday: Sunny and hot. Afternoon breezes, high of about 97°F. Sunday night:Partly cloudy. Light breezes, low near 67°F. Monday: Mostly sunny and very warm. Light breezes, high around 96°F. Monday night: Mostly clear. Light breezes, low of about 66°F. Tuesday: Sunny and hot, high near 97°F. Tuesday night: Mostly clear, low around 66°F. Wednesday: Sunny and hot, high of about 101°F. Wednesday night: Mostly clear, low near 68°F. Thursday: Mostly sunny and hot. Slight chance of showers and thunderstorms in the afternoon, high around 103°F. Thursday night: Mostly clear, low of about 68°F. Friday: Mostly sunny and hot. Slight chance of showers and thunderstorms, high near 101°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
El Nino Advisory issued, strong event highly likely during 2026-2027
On July 9th 2026, the Climate Prediction Center updated their seasonal El N ... Posted July 16, 2026, 10:24 PM
Monsoonal moisture and elevated heat this week
Temperatures are forecast to soar across Southern California this week, nea ... Posted July 13, 2026, 10:11 PMOther Weather Information
National Weather Service
Other San Jacinto Weather Forecasts
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