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

Currently 66°F in San Jacinto, California, USA

Friday, July 10, 2026 4:01 AM PDT

San Jacinto Forecast Summary

Today	Tomorrow	Sunday

Sunny, Hot	Mostly sunny, Hot	Partly sunny, Hot
High: 100°F	High: 99°F	High: 97°F
Low: 64°F	Low: 64°F	Low: 66°F

Complete Forecast Text Below

Currently in San Jacinto

Temperature, Humidity, Wind & Pressure

Time:	4:01 AM PDT
Temperature:	66°F
Normal Temperature :	68°F
Relative Humidity:	36%
Dewpoint:	37°F
Heat Index:	66°F
Wind Chill:	66°F
Wind:	1 mph SE (113°)
Gusts:	3 mph
Barometer:	30.34" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	5:44 AM	8:00 PM	14:16
Tomorrow:	5:45 AM	8:00 PM	14:15
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	75°F	12:01 AM	97°F	103°F
Low:	66°F	4:01 AM	64°F	67°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:

66°F

Hemet:

69°F

Lake Elsinore:

67°F

Moreno Valley:

66°F

Riverside (Canyon Crest):

63°F

Riverside (Presidential Park):

66°F

Temecula:

N/A*

* Weather report not current

Complete Local Weather Roundup

San Jacinto Forecast

Thursday, July 9, 2026

Today's forecast is coming soon

This afternoon in San Jacinto, the weather will be sunny and hot, with temperatures climbing to near 102° and a southwest wind around 10 mph, gusting near 20 mph. Tonight will be clear and cooler, with the temperature falling to around 64°.

Friday stays sunny and a touch cooler, with a high near 100° and a southwest wind around 10 mph, gusting near 20 mph. The weekend looks mostly dry and warm, with highs near 99° on Saturday and near 97° on Sunday, while overnight lows hold in the mid to upper 60s. A slight chance of showers returns late Sunday night, then rain chances increase a bit on Monday, with the warm pattern continuing into next week and highs near 102° on Tuesday and near 104° on Wednesday.

Today: Sunny and hot with a heat advisory in place , high near 102°F .

Pollen level is rated "low-medium".

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

Tonight: Clear, low around 64°F.

Friday: Sunny and hot, high of about 100°F.

Friday night:Mostly clear, low near 64°F.

Saturday: Mostly sunny and hot, high around 99°F.

Saturday night: Partly cloudy, low of about 66°F.

Sunday: Partly sunny and hot with a slight chance of showers in the late afternoon, high near 97°F.

Sunday night: Partly cloudy, low around 67°F.

Monday: Mostly sunny with a chance of showers after 11am, high of about 98°F.

Monday night: Mostly clear, low near 69°F.

Tuesday: Mostly sunny and hot with a slight chance of showers, high around 102°F.

Tuesday night: Mostly clear, low of about 71°F.

Wednesday: Mostly sunny with monsoonal moisture still in the region, high near 104°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.
July 9	100°F	64°F	83°F	0.00"
July 8	104°F	63°F	84°F	0.00"
July 7	100°F	64°F	82°F	0.00"
July 6	97°F	66°F	80°F	0.00"
July 5	95°F	65°F	81°F	0.00"
July 4	95°F	62°F	80°F	0.00"
July 3	95°F	60°F	77°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

Multiple wildfires send smoke inland Tuesday afternoon

Two separate wildfires burning in the southern Santa Ana Mountains have sen ...

Posted July 7, 2026, 5:15 PM

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Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

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