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

Currently 70°F in San Jacinto, California, USA

Tuesday, August 4, 2026 3:57 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Thursday

Sunny, Hot	Sunny, Hot	Sunny, Hot
High: 102°F	High: 100°F	High: 100°F
Low: 68°F	Low: 68°F	Low: 68°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	3:57 AM PDT
Temperature:	70°F
Normal Temperature :	72°F
Relative Humidity:	66%
Dewpoint:	58°F
Heat Index:	75°F
Wind Chill:	70°F
Wind:	calm
Gusts:	none
Barometer:	30.30" Hg falling

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:00 AM	7:43 PM	13:43
Tomorrow:	6:01 AM	7:42 PM	13:41
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	78°F	12:01 AM	98°F	96°F
Low:	70°F	3:57 AM	66°F	63°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:

70°F

Hemet:

72°F

Lake Elsinore:

69°F

Moreno Valley:

69°F

Riverside (Canyon Crest):

67°F

Riverside (Presidential Park):

69°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Monday, August 3, 2026

This afternoon in San Jacinto, the weather will be sunny and hot, with a high near 103°. Southwest wind around 10 mph, with gusts near 20 mph. Tonight will stay mostly clear, with a low around 69°.

Tuesday stays sunny and just a touch cooler, with a high near 102°. Wednesday brings more sunshine with a high near 101°, then Thursday stays sunny near 101°. Friday warms back to near 103°, Saturday reaches near 102°, and Sunday eases to near 100°. Overnight lows hold in the upper 60s to around 70° through the end of the week.

Today: Sunny and hot , high near 103°F .

Pollen level is rated "low-medium".

Predicted air quality is good, AQI: 47 (courtesy of the SCAQMD).

Tonight: Clear, low around 68°F.

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

Tuesday night:Clear, low near 68°F.

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

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

Thursday: Sunny and hot, high near 100°F.

Thursday night: Mostly clear, low around 70°F.

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

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

Saturday: Sunny and hot, high around 101°F.

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

Sunday: Sunny and hot, high near 99°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 3	104°F	69°F	85°F	0.00"
August 2	107°F	70°F	87°F	0.00"
August 1	107°F	71°F	88°F	0.00"
July 31	108°F	66°F	85°F	0.00"
July 30	101°F	64°F	81°F	0.00"
July 29	101°F	66°F	81°F	0.00"
July 28	99°F	68°F	83°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

Extreme heat to remain in place through Sunday

An Extreme Heat Warning issued by the National Weather Service for the inla ...

Posted August 1, 2026, 6:20 PM

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Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

Other San Jacinto Weather Forecasts

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