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

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

Sunday, May 17, 2026 8:18 PM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Tuesday

Variably cloudy, Breezy	Variably cloudy	Sunny
High: 65°F	High: 82°F	High: 89°F
Low: 53°F	Low: 50°F	Low: 50°F

Complete Forecast Text Below

Currently in San Jacinto

Warning: Current weather report out of date

Temperature, Humidity, Wind & Pressure

Time:	8:18 PM PDT
Temperature:	N/A
Normal Temperature :	78°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:	5:47 AM	7:44 PM	13:57
Tomorrow:	5:46 AM	7:44 PM	13:58
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	N/A	N/A	80°F	78°F
Low:	N/A	N/A	54°F	52°F

Precipitation

60 Min.	Today	Month	Season
N/A	N/A	0.12"	7.83"
Season began July 1, 2025
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:

62°F

Moreno Valley:

N/A*

Riverside (Canyon Crest):

63°F

Riverside (Presidential Park):

65°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Sunday, May 17, 2026

Cooler weather will persist through the weekend, with a deeper marine layer and night and morning coastal low clouds extending well inland and onto the coastal slopes of the mountains. Gradually warmer, drier weather with generally weak winds will follow Monday through Thursday, followed by a slight cooldown from Thursday into Friday.

Today: Low clouds and fog, otherwise mostly sunny. Afternoon breezes , high near 65°F .

Pollen level is rated "medium".

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

Tonight: Mostly cloudy, then patchy fog developing. Evening breezes, low around 50°F.

Monday: Low clouds and fog early, becoming sunny and warm. Light breezes, high of about 82°F.

Monday night:Mostly clear. Light breezes, low near 50°F.

Tuesday: Sunny and warm. Light breezes, high around 89°F.

Tuesday night: Mostly clear. Light breezes, low of about 53°F.

Wednesday: Sunny and very warm, high near 91°F.

Wednesday night: Mostly clear, low around 54°F.

Thursday: Sunny and very warm, high of about 91°F.

Thursday night: Mostly clear, low near 54°F.

Friday: Sunny and warm, high around 89°F.

Friday night: Mostly clear, low of about 54°F.

Saturday: Sunny and warm, high near 88°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.
May 13	83°F	59°F	67°F	0.00"
May 12	77°F	59°F	67°F	0.00"
May 11	100°F	58°F	80°F	0.00"
May 10	94°F	56°F	74°F	0.00"
May 9	91°F	56°F	73°F	0.00"
May 8	90°F	55°F	70°F	0.00"
May 7	88°F	53°F	70°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

Storm Totals: May 4th-5th, 2026

A low pressure system off the Central California coast brought unsettled we ...

Posted May 7, 2026, 10:22 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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