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

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

Wednesday, September 16, 2026 2:27 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Friday

Sunny	Sunny	Sunny
High: 84°F	High: 85°F	High: 89°F
Low: 57°F	Low: 58°F	Low: 59°F

Complete Forecast Text Below

Currently in San Jacinto

Warning: Current weather report out of date

Temperature, Humidity, Wind & Pressure

Time:	2:27 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:	6:32 AM	6:54 PM	12:21
Tomorrow:	6:33 AM	6:52 PM	12:19
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:

60°F

Lake Elsinore:

63°F

Moreno Valley:

61°F

Riverside (Canyon Crest):

62°F

Riverside (Presidential Park):

65°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Tuesday, September 15, 2026

This afternoon in San Jacinto, the weather will be sunny and warm, with temperatures climbing to near 87° and a southwest breeze around 5 to 10 mph. Skies stay partly cloudy this evening, then patchy fog develops after 11pm as temperatures cool to around 57°.

Tomorrow starts with patchy fog before 11am, then turns sunny with a high near 84°. Wednesday night stays mostly clear with a low around 57°, and Thursday brings more sunshine with a high near 86°. Looking ahead, Friday warms to near 90°, Saturday reaches near 92°, and Sunday stays sunny with a high near 89°.

Today: Sunny and nice , high near 86°F .

Pollen level is rated "low-medium".

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

Tonight: Mostly clear with some patchy early morning fog, low around 57°F.

Wednesday: Sunny, high of about 84°F.

Wednesday night:Mostly clear, low near 58°F.

Thursday: Sunny, high around 85°F.

Thursday night: Clear, low of about 59°F.

Friday: Sunny, high near 89°F.

Friday night: Clear, low around 61°F.

Saturday: Sunny, high of about 91°F.

Saturday night: Clear, low near 61°F.

Sunday: Sunny, high around 89°F.

Sunday night: Mostly clear, low of about 59°F.

Monday: Sunny, high near 86°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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