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 09 2025 at 7:35 AM PDTNext Issuance: Jul 10 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)
Today: Mostly sunny. Highs 96 to 103. Areas of winds west to 10 mph and becoming 10 to 15 mph this afternoon.

Tonight: Mostly clear. Lows 64 to 69. Areas of winds west to 10 mph in the evening becoming light.

Thursday: Partly cloudy in the morning and becoming sunny. Highs 96 to 105. Areas of winds west to 10 mph and becoming 10 to 15 mph in the afternoon.

Thursday Night: Clear. Lows 60 to 66. Areas of winds west 10 to 15 mph in the evening becoming light.

Friday: Mostly sunny. Highs 90 to 98. Areas of winds south to 10 mph.

Friday Night: Mostly clear. Lows 57 to 62.

Saturday: Mostly sunny. Highs 89 to 96.

Saturday Night: Mostly clear. Lows 58 to 62.

Sunday: Partly cloudy with patchy fog in the morning and becoming sunny. Highs 89 to 97.

Sunday Night: Mostly clear. Lows 58 to 63.

Monday: Mostly sunny. Highs 89 to 97.

Monday Night: Mostly clear. Lows 58 to 62.

Tuesday: Mostly sunny. Highs 88 to 96.
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.