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

Currently 74°F in San Jacinto, California, USA

Tuesday, July 21, 2026 3:10 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Thursday

Sunny	Sunny, Hot	Sunny, Hot
High: 96°F	High: 100°F	High: 104°F
Low: 68°F	Low: 67°F	Low: 70°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	3:10 AM PDT
Temperature:	74°F
Normal Temperature :	72°F
Relative Humidity:	48%
Dewpoint:	52°F
Heat Index:	77°F
Wind Chill:	74°F
Wind:	calm
Gusts:	none
Barometer:	30.42" Hg steady

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	5:51 AM	7:55 PM	14:04
Tomorrow:	5:52 AM	7:55 PM	14:03
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	78°F	12:01 AM	97°F	N/A
Low:	74°F	3:05 AM	67°F	N/A

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:

74°F

Hemet:

71°F

Lake Elsinore:

72°F

Moreno Valley:

70°F

Riverside (Canyon Crest):

70°F

Riverside (Presidential Park):

72°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Monday, July 20, 2026

This afternoon in San Jacinto, the weather will be mostly sunny and warm, with patchy fog early, then sunshine building through the afternoon and a high near 95°. West wind will stay light around 10 mph. Tonight will be mostly clear and mild, cooling to around 67°.

Tuesday stays sunny and a touch warmer, with a high near 96° and a southwest wind around 10 mph, with gusts near 20 mph. Wednesday turns hotter with sunshine and a high near 100°, then Thursday climbs to near 104°. Friday stays very warm with a high near 103° and a slight chance of showers and thunderstorms during the afternoon, while the weekend remains sunny and hot with highs near 103° on Saturday and near 104° on Sunday.

Today: Mostly sunny and very warm. Afternoon breezes , high near 95°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 68°F.

Tuesday: Sunny and very warm, high of about 96°F.

Tuesday night:Mostly clear, low near 67°F.

Wednesday: Sunny and hot, high around 100°F.

Wednesday night: Mostly clear, low of about 70°F.

Thursday: Sunny and hot, high near 104°F.

Thursday night: Mostly clear and warm, low around 71°F.

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

Friday night: Mostly clear, low near 71°F.

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

Saturday night: Clear and warm, low of about 71°F.

Sunday: Sunny and hot, high near 104°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.
July 20	93°F	72°F	82°F	0.00"
July 19	99°F	70°F	83°F	0.00"
July 18	99°F	72°F	83°F	0.00"
July 17	95°F	71°F	82°F	0.00"
July 16	102°F	73°F	87°F	0.00"
July 15	105°F	71°F	89°F	0.00"
July 14	102°F	69°F	85°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.

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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

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Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

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