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

Currently 85°F in San Jacinto, California, USA

Friday, August 28, 2026 12:06 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Sunday

Mostly sunny, Hot	Sunny, Hot	Sunny, Hot
High: 105°F	High: 102°F	High: 97°F
Low: 77°F	Low: 74°F	Low: 72°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	12:06 AM PDT
Temperature:	85°F
Normal Temperature :	76°F
Relative Humidity:	41%
Dewpoint:	58°F
Heat Index:	84°F
Wind Chill:	85°F
Wind:	calm
Gusts:	none
Barometer:	30.33" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:19 AM	7:19 PM	13:00
Tomorrow:	6:20 AM	7:18 PM	12:58
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	85°F	12:01 AM	97°F	83°F
Low:	85°F	12:06 AM	66°F	69°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:

85°F

Hemet:

84°F

Lake Elsinore:

84°F

Moreno Valley:

81°F

Riverside (Canyon Crest):

80°F

Riverside (Presidential Park):

83°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Thursday, August 27, 2026

This afternoon in San Jacinto, the weather will be very hot, and an Extreme Heat Warning remains in effect through Thursday afternoon. Mostly sunny skies will keep temperatures climbing to near 106°, with a west wind around 10 mph and gusts near 20 mph. This evening stays partly cloudy as temperatures ease back to around 74° overnight.

Tomorrow will stay very hot and sunny, with another high near 106° and a heat index as high as 105°. A southwest wind around 10 mph could gust near 20 mph at times. Friday night turns mostly clear and cooler, with a low around 72°. Saturday stays sunny and a bit cooler with a high near 102° and gusts near 25 mph, then Sunday brings more sunshine and a high near 97°. The warming trend continues to start next week, with highs near 92° on Monday and around 90° Tuesday, along with a slight chance of showers late Monday night into Tuesday. An Air Quality Alert remains in effect through Friday evening.

Today: Sunny and hot , high near 106°F .

Pollen level is rated "low-medium".

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

Tonight: Partly cloudy and warm, low around 77°F.

Friday: Mostly sunny and hot, high of about 105°F.

Friday night:Mostly clear, low near 74°F.

Saturday: Sunny and hot, high around 102°F.

Saturday night: Clear, low of about 72°F.

Sunday: Sunny and a little cooler, high near 97°F.

Sunday night: Mostly clear, low around 63°F.

Monday: Sunny and cooler, high of about 91°F.

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

Tuesday: Mostly sunny with a slight chance of showers early, high around 90°F.

Tuesday night: Partly cloudy, low of about 67°F.

Wednesday: Mostly sunny with a slight chance of showers, high near 91°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 27	103°F	79°F	91°F	0.00"
August 26	108°F	75°F	92°F	0.00"
August 25	106°F	71°F	89°F	0.00"
August 24	107°F	71°F	88°F	0.00"
August 23	106°F	71°F	89°F	0.00"
August 22	106°F	71°F	88°F	0.00"
August 21	104°F	75°F	89°F	0.00"
More Past Weather