Currently 92°F in San Jacinto, California, USA
92°F
93°F / 77°F
2 mph W
0.00"
Thursday, September 10, 2026 10:13 AM PDT

Seven Day Forecast for San Jacinto, California

Posted Wednesday, September 9, 2026, 10:47 AM
Warning Today's forecast is coming soon

This afternoon in San Jacinto, the weather will be very hot, and an Extreme Heat Warning and Heat Advisory remain in effect through Wednesday at 8:00 PM. A slight chance of showers will linger through the afternoon, but most of the time it stays mostly sunny with a high near 106° and heat index values as high as 108°. Temperatures ease back to around 76° overnight under partly cloudy skies.

Tomorrow stays hot and mostly sunny with a high near 104° and heat index values as high as 108°. A light southwest breeze may pick up a bit during the afternoon, then Thursday night turns mostly clear and cooler with a low around 72°. Friday brings more sunshine and a high near 97°, followed by a mostly clear Friday night with a low around 65°. The weekend trends cooler and comfortable, with highs in the low 90s on Saturday and upper 80s on Sunday, then near 90° Monday and 89° Tuesday, while overnight lows settle into the upper 50s to near 60°.

Mostly sunny, Hot
Today:
104°F 
76°F 
Mostly sunny, dangerously hot and humid
0% chance of precipitation
Predicted Air Quality: good, AQI: 44 (courtesy of the SCAQMD).
Pollen level is rated "low-medium".
Thursday night / Friday morning:
72°F  Mostly clear
0% chance of precipitation
Sunny, Hot
Friday:
97°F  Sunny and hot
0% chance of precipitation
Friday night / Saturday morning:
65°F  Clear and cooler
0% chance of precipitation
Sunny
Saturday:
92°F  Sunny and cooler
0% chance of precipitation
Saturday night / Sunday morning:
59°F  Clear
0% chance of precipitation
Sunny
Sunday:
89°F  Sunny
0% chance of precipitation
Sunday night / Monday morning:
58°F  Mostly clear
0% chance of precipitation
Sunny
Monday:
90°F  Sunny
0% chance of precipitation
Monday night / Tuesday morning:
57°F  Clear
0% chance of precipitation
Sunny
Tuesday:
89°F  Sunny and nice
0% chance of precipitation
Tuesday night / Wednesday morning:
N/A 
% chance of precipitation
Not Available
Wednesday:
N/A 
% chance of precipitation

The San Jacinto, California weather pages are a service of WeatherCurrents. San Jacinto is located in the heart of the San Jacinto Valley, near Hemet, the Soboba Casino, and at the foot of the San Jacinto Mountains.
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