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

Currently 59°F in San Jacinto, California, USA

Saturday, September 5, 2026 7:22 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Monday

Sunny	Chance of showers, Cloudy	Mostly sunny
High: 90°F	High: 87°F	High: 93°F
Low: 62°F	Low: 69°F	Low: 69°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	7:22 AM PDT
Temperature:	59°F
Normal Temperature :	71°F
Relative Humidity:	50%
Dewpoint:	40°F
Heat Index:	59°F
Wind Chill:	59°F
Wind:	calm
Gusts:	none
Barometer:	30.46" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:23 AM	7:07 PM	12:44
Tomorrow:	6:24 AM	7:06 PM	12:42
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	68°F	12:01 AM	96°F	99°F
Low:	59°F	6:01 AM	66°F	66°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:

63°F

Lake Elsinore:

58°F

Moreno Valley:

66°F

Riverside (Canyon Crest):

59°F

Riverside (Presidential Park):

59°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Friday, September 4, 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° this afternoon before easing back to around 61° tonight under mostly clear skies.

Tomorrow will be sunny and a bit warmer, with a high near 91°. A slight chance of rain showers arrives after 5pm, then the chance for showers increases Saturday night as clouds build in and temperatures settle to around 68°. Sunday stays partly sunny with a chance of rain showers and a high near 87°, followed by a slight chance of showers Sunday night and a low around 68°. Labor Day looks mostly sunny and warmer with a high near 93°, then Monday night turns partly cloudy and cools to around 67°. Tuesday stays mostly sunny and hot with a high near 95°, Wednesday reaches near 97°, and Thursday stays sunny with a high near 96°.

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 62°F.

Saturday: Sunny, high of about 90°F.

Saturday night:Cloudy with a chance of showers, low near 69°F.

Sunday: Partly to mostly cloudy with a 40% chance of showers, high around 87°F.

Sunday night: Partly to mostly cloudy with a chance of showers, low of about 69°F.

Monday: Mostly sunny and warmer, high near 93°F.

Monday night: Partly cloudy, low around 68°F.

Tuesday: Sunny and hot, high of about 95°F.

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

Wednesday: Sunny and hot, high around 97°F.

Wednesday night: Partly cloudy, low of about 70°F.

Thursday: Sunny with some clouds and a slight chance of showers in the region, high near 95°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 4	89°F	58°F	72°F	0.00"
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"
More Past Weather