San Jacinto Weather Pages - Current and Past Weather, Forecasts and News for San Jacinto, California

Currently 69°F in San Jacinto, California, USA

Thursday, August 6, 2026 5:55 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Saturday

Sunny, Hot	Sunny, Hot	Sunny, Hot
High: 100°F	High: 101°F	High: 103°F
Low: 68°F	Low: 70°F	Low: 71°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	5:55 AM PDT
Temperature:	69°F
Normal Temperature :	70°F
Relative Humidity:	77%
Dewpoint:	62°F
Heat Index:	69°F
Wind Chill:	69°F
Wind:	calm
Gusts:	none
Barometer:	30.44" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:02 AM	7:41 PM	13:40
Tomorrow:	6:02 AM	7:41 PM	13:38
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	75°F	12:01 AM	97°F	104°F
Low:	69°F	5:33 AM	66°F	65°F

Precipitation

60 Min.	Today	Month	Season
0.00"	0.00"	0.00"	0.00"
Season began July 1, 2026
Past Season Precipitation Totals

Data captured from a Davis Instruments Vantage Pro 2

Local Weather Roundup

San Jacinto:

69°F

Hemet:

68°F

Lake Elsinore:

69°F

Moreno Valley:

68°F

Riverside (Canyon Crest):

66°F

Riverside (Presidential Park):

68°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Wednesday, August 5, 2026

Today's forecast is coming soon

This afternoon in San Jacinto, the weather will be sunny and hot, with temperatures climbing to near 100° and southwest winds around 5 mph, gusting near 20 mph. Tonight will be mostly clear and much cooler, with a low around 68°.

Thursday stays sunny and very warm, with a high near 101° and a light southwest breeze around 5 mph. Thursday night will be mostly clear with a low around 69°, then Friday turns sunny again with a high near 102°. The heat builds a bit more Saturday with a high near 104°, followed by a sunny Sunday near 103°. Monday brings a slight chance of rain showers between 11 AM and 5 PM, otherwise sunny with a high near 99°. Tuesday looks sunny and a little cooler with a high near 97°.

Today: Sunny and hot , high near 100°F .

Pollen level is rated "low-medium".

Predicted air quality is good, AQI: 47 (courtesy of the SCAQMD).

Tonight: Mostly clear, low around 68°F.

Thursday: Sunny and hot, high of about 100°F.

Thursday night:Mostly clear, low near 70°F.

Friday: Sunny and hot, high around 101°F.

Friday night: Mostly clear, low of about 71°F.

Saturday: Sunny and hot, high near 103°F.

Saturday night: Mostly clear, low around 71°F.

Sunday: Sunny and hot, high of about 102°F.

Sunday night: Mostly clear, low near 70°F.

Monday: Sunny with a slight chance of afternoon showers, high around 98°F.

Monday night: Mostly clear, low of about 68°F.

Tuesday: Sunny and hot, high near 96°F.

Complete Forecast Page

San Jacinto forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.

Recently in San Jacinto

Date	High	Low	Ave.	Prec.
August 5	99°F	68°F	82°F	0.00"
August 4	100°F	67°F	82°F	0.00"
August 3	104°F	69°F	85°F	0.00"
August 2	107°F	70°F	87°F	0.00"
August 1	107°F	71°F	88°F	0.00"
July 31	108°F	66°F	85°F	0.00"
July 30	101°F	64°F	81°F	0.00"
More Past Weather

San Jacinto Featured Photos

Full moon: The evening moon rises above Mountain View High School in San Jacinto. Photo courtesy of Denise Leonard.

More Photos and Features Submit Your Photo

San Jacinto Weather News

Extreme heat to remain in place through Sunday

An Extreme Heat Warning issued by the National Weather Service for the inla ...

Posted August 1, 2026, 6:20 PM

More San Jacinto Weather News

Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

Other San Jacinto Weather Forecasts

Other Local Forecasts