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

Currently N/A°F in San Jacinto, California, USA

Friday, September 18, 2026 6:16 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Sunday

Sunny	Sunny	Mostly sunny
High: 85°F	High: 91°F	High: 90°F
Low: 56°F	Low: 59°F	Low: 63°F

Complete Forecast Text Below

Currently in San Jacinto

Warning: Current weather report out of date

Temperature, Humidity, Wind & Pressure

Time:	6:16 AM PDT
Temperature:	N/A
Normal Temperature :	90°F
Relative Humidity:	N/A
Dewpoint:	N/A°F
Heat Index:	N/A°F
Wind Chill:	N/A°F
Wind:	N/A
Gusts:	N/A
Barometer:	N/A N/A

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:34 AM	6:51 PM	12:17
Tomorrow:	6:34 AM	6:49 PM	12:15
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	N/A	N/A	92°F	84°F
Low:	N/A	N/A	63°F	61°F

Precipitation

60 Min.	Today	Month	Season
N/A	N/A	0.23"	0.23"
Season began July 1, 2026
Past Season Precipitation Totals

Data captured from a Davis Instruments Vantage Pro 2

Local Weather Roundup

San Jacinto:

N/A*

Hemet:

57°F

Lake Elsinore:

61°F

Moreno Valley:

57°F

Riverside (Canyon Crest):

58°F

Riverside (Presidential Park):

61°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Thursday, September 17, 2026

Today's forecast is coming soon

This afternoon in San Jacinto, the weather will be sunny and pleasant, with temperatures climbing to near 84° and a light west breeze at times. Skies stay mostly clear this evening, then overnight lows settle to around 55°.

Tomorrow will be sunny again, with a high near 85° and a light west wind at times. Friday night stays clear and cool with a low around 59°, then Saturday turns a bit warmer with sunshine and a high near 91°. Sunday stays mostly sunny near 90°, Monday remains sunny near 86°, Tuesday warms to near 89°, and Wednesday looks even hotter with sunshine and a high near 94°.

Today: Sunny , high near 84°F .

Pollen level is rated "low-medium".

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

Tonight: Clear, low around 56°F.

Friday: Sunny, high of about 85°F.

Friday night:Clear, low near 59°F.

Saturday: Sunny, high around 91°F.

Saturday night: Clear, low of about 63°F.

Sunday: Sunny, high near 90°F.

Sunday night: Partly cloudy, low around 60°F.

Monday: Sunny, high of about 85°F.

Monday night: Clear, low near 58°F.

Tuesday: Sunny, high around 89°F.

Tuesday night: Clear, low of about 60°F.

Wednesday: Sunny and warmer, high near 94°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 10	104°F	77°F	91°F	0.00"
September 9	106°F	75°F	90°F	0.00"
September 8	99°F	71°F	85°F	0.00"
September 7	87°F	71°F	79°F	0.03"
September 6	79°F	66°F	73°F	0.20"
September 5	93°F	59°F	78°F	0.00"
September 4	89°F	58°F	72°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 returns to SoCal; Thunderstorms hit Temecula

Triple-digit heat has returned to the region Tuesday, prompting the Nationa ...

Posted September 8, 2026, 9:26 PM

More San Jacinto Weather News

Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

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