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

Currently 59°F in San Jacinto, California, USA

Friday, September 4, 2026 5:34 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Sunday

Sunny	Cloudy, Chance of showers	Chance of showers, Cloudy
High: 88°F	High: 90°F	High: 88°F
Low: 54°F	Low: 59°F	Low: 65°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	5:34 AM PDT
Temperature:	59°F
Normal Temperature :	71°F
Relative Humidity:	72%
Dewpoint:	49°F
Heat Index:	59°F
Wind Chill:	59°F
Wind:	calm
Gusts:	none
Barometer:	30.42" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:23 AM	7:09 PM	12:46
Tomorrow:	6:23 AM	7:07 PM	12:44
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	64°F	12:01 AM	96°F	99°F
Low:	59°F	5:17 AM	66°F	70°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:

59°F

Hemet:

57°F

Lake Elsinore:

58°F

Moreno Valley:

59°F

Riverside (Canyon Crest):

59°F

Riverside (Presidential Park):

62°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Thursday, September 3, 2026

Today's forecast is coming soon

This afternoon in San Jacinto, the weather will be sunny and warm, with temperatures climbing to near 88° and a southwest breeze around 15 mph at times, with gusts near 25 mph. Skies stay mostly clear tonight, and temperatures will cool to around 54°.

Tomorrow will be sunny again, with a high near 88° and a southwest wind around 10 mph, with gusts near 20 mph. Saturday stays warm with a high near 90° and just a slight chance of showers after 11 a.m., then a chance of showers Saturday night with a low around 65°. Sunday brings a chance of showers and thunderstorms, followed by sunny weather for Labor Day with a high near 93°. The warmup continues Tuesday with a high near 95°, and Wednesday looks sunny and hotter with a high near 97°.

Today: Sunny , high near 88°F .

Pollen level is rated "low-medium".

Predicted air quality is good, AQI: 44 (courtesy of the SCAQMD).

Tonight: Mostly clear, low around 54°F.

Friday: Sunny, high of about 88°F.

Friday night:Mostly clear, low near 59°F.

Saturday: Increasing clouds with a slight chance of showers after noon, high around 90°F.

Saturday night: Cloudy with a chance of showers, low of about 65°F.

Sunday: A chance of showers and thunderstorms, high near 88°F.

Sunday night: Partly to mostly cloudy with a chance of showers, low around 63°F.

Monday: Sunny and warmer, high of about 93°F.

Monday night: Mostly clear, low near 65°F.

Tuesday: Sunny and hot, high around 95°F.

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

Wednesday: Sunny and hot, high near 97°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.
September 3	88°F	56°F	71°F	0.00"
September 2	89°F	57°F	73°F	0.00"
September 1	92°F	60°F	75°F	0.00"
August 31	93°F	66°F	78°F	0.00"
August 30	97°F	70°F	83°F	0.00"
August 29	101°F	75°F	88°F	0.00"
August 28	106°F	76°F	90°F	0.00"
More Past Weather