National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 |  End of River Group

SANTA MARGARITA RIVER - TEMECULA (SMHC1)
Latitude: 33.47º NLongitude: 117.14º WElevation: 950 Feet
Location: Riverside County in CaliforniaBulletin Group: Southern CaliforniaRiver Group: San Diego/Inland
Issuance Time: Jul 18 2025 at 7:07 AM PDTNext Issuance: Jul 19 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ048)
Tonight: Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows 57 to 63. Areas of winds west 10 mph this evening becoming light. Chance of measurable precipitation 20 percent.

Saturday: Partly cloudy in the morning and becoming mostly sunny. Highs 88 to 96. Light winds becoming west 10 mph in the afternoon.

Saturday Night: Mostly clear. Lows 55 to 62. Areas of winds southwest 10 mph in the evening becoming light.

Sunday: Mostly sunny. Highs 86 to 93. Light winds becoming southwest 10 mph in the afternoon.

Sunday Night: Mostly clear. Lows 53 to 61. Areas of winds southwest 10 mph in the evening becoming light.

Monday: Partly cloudy in the morning and becoming sunny. Highs 85 to 91.

Monday Night: Mostly clear. Lows 51 to 59.

Tuesday: Partly cloudy in the morning and becoming sunny. Highs 85 to 92.

Tuesday Night: Mostly clear. Lows 51 to 60.

Wednesday: Partly cloudy in the morning and becoming mostly sunny. Highs 87 to 93.

Wednesday Night: Mostly clear. Lows 53 to 61.

Thursday: Mostly sunny. Highs 89 to 96.

Thursday Night: Mostly clear. Lows 54 to 62.

Friday: Mostly sunny. Highs 91 to 98.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Diego Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.