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

Currently 83°F in San Jacinto, California, USA

Monday, August 24, 2026 11:09 PM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Wednesday

Sunny, Hot	Sunny, Hot	Sunny, Hot
High: 105°F	High: 107°F	High: 108°F
Low: 72°F	Low: 71°F	Low: 74°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	11:09 PM PDT
Temperature:	83°F
Normal Temperature :	77°F
Relative Humidity:	46%
Dewpoint:	60°F
Heat Index:	83°F
Wind Chill:	83°F
Wind:	1 mph S (175°)
Gusts:	3 mph
Barometer:	30.41" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:15 AM	7:23 PM	13:08
Tomorrow:	6:16 AM	7:22 PM	13:06
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	107°F	3:58 PM	97°F	102°F
Low:	71°F	6:09 AM	65°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:

83°F

Hemet:

81°F

Lake Elsinore:

80°F

Moreno Valley:

84°F

Riverside (Canyon Crest):

79°F

Riverside (Presidential Park):

83°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Monday, August 24, 2026

This afternoon in San Jacinto, the weather will be hot and sunny, and an Extreme Heat Warning and Heat Advisory remain in effect through Monday, 3:30 PM. Temperatures will climb to near 105°, with southwest winds around 15 mph and gusts near 25 mph. Skies stay mostly clear tonight, with the temperature cooling to around 71°.

Tomorrow will be sunny and even hotter, with a high near 107° and heat index values as high as 105°. A light southwest breeze may pick up at times with gusts near 20 mph. Wednesday stays sunny and very hot with a high near 108°, then Thursday looks just as intense with another high near 108°. The heat eases a bit Friday with a high near 106°, followed by 104° Saturday and near 100° Sunday. Overnight lows hold in the low to mid 70s through Saturday night, then dip to around 68° Sunday night.

Today: Sunny and hot , high near 105°F .

Pollen level is rated "low-medium".

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

Tonight: Mostly clear, low around 71°F.

Tuesday: Sunny and hot, high of about 107°F.

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

Wednesday: Sunny and hot, high around 108°F.

Wednesday night: Mostly clear, low of about 75°F.

Thursday: Sunny and hot, high near 108°F.

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

Friday: Mostly sunny and hot, high of about 106°F.

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

Saturday: Sunny and hot, high around 104°F.

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

Sunday: Sunny and a little cooler, high near 100°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 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"
August 20	104°F	71°F	87°F	0.00"
August 19	106°F	70°F	87°F	0.00"
August 18	102°F	69°F	85°F	0.00"
August 17	102°F	67°F	84°F	0.00"
More Past Weather