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

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

Monday, October 5, 2026 9:54 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Wednesday

Sunny, Hot	Sunny, Hot	Sunny, Hot
High: 98°F	High: 98°F	High: 103°F
Low: 71°F	Low: 72°F	Low: 71°F

Complete Forecast Text Below

Currently in San Jacinto

Warning: Current weather report out of date

Temperature, Humidity, Wind & Pressure

Time:	9:54 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:	6:52 AM	6:33 PM	11:41
Tomorrow:	6:52 AM	6:32 PM	11:39
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:

86°F

Lake Elsinore:

101°F

Moreno Valley:

90°F

Riverside (Canyon Crest):

89°F

Riverside (Presidential Park):

87°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Monday, October 5, 2026

This afternoon in San Jacinto, the weather will be sunny and very hot, and an Extreme Heat Warning remains in effect through Thursday afternoon. Highs will climb to near 98°, then skies stay mostly clear tonight with a low around 68°.

Tomorrow stays sunny and just as hot, with another high near 98°. Wednesday turns even hotter with sunshine and a high near 103°, then Thursday stays sunny near 101°. Friday remains sunny near 98°, before a cooler stretch arrives for Saturday with a high near 90°. By Sunday, mostly sunny skies return with a slight chance of rain showers late in the day and a high near 83°.

Today: Sunny , high near 98°F .

Pollen level is rated "medium".

Predicted air quality is moderate, AQI: 55 (courtesy of the SCAQMD).

Tonight: Clear, low around 72°F.

Tuesday: Sunny and hot, high of about 98°F.

Tuesday night:Clear, low near 71°F.

Wednesday: Sunny and hot, high around 103°F.

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

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

Thursday night: Clear, low around 70°F.

Friday: Sunny and hot, high of about 98°F.

Friday night: Mostly clear, low near 67°F.

Saturday: Sunny and cooler, high around 90°F.

Saturday night: Mostly clear and cooler, low of about 61°F.

Sunday: Sunny and much cooler, high near 83°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

San Jacinto Station down for repair

The weather station that reports for San Jacinto failed on September 10th a ...

Posted September 22, 2026, 8:48 AM

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Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

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