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

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SAN TIMOTEO CREEK - LOMA LINDA (TIMC1)
Latitude: 34.06º NLongitude: 117.27º WElevation: 1010 Feet
Location: San Bernardino County in CaliforniaBulletin Group: Southern CaliforniaRiver Group: Southern California
Issuance Time: May 08 2025 at 7:57 AM PDTNext Issuance: May 09 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: Clear. Lows 56 to 63. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.

Friday: Sunny, warmer. Highs 95 to 99. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.

Friday Night: Clear. Lows 62 to 68. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Saturday: Mostly sunny. Hot. Highs 99 to 105. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph in the afternoon.

Saturday Night: Partly cloudy. Patchy fog overnight. Lows 63 to 68. Areas of winds southwest to 10 mph in the evening becoming light.

Sunday: Mostly cloudy with patchy fog in the morning and becoming partly cloudy. Not as hot. Highs 87 to 92.

Sunday Night: Partly cloudy. Patchy fog overnight. Cooler. Lows 52 to 59.

Monday: Patchy fog in the morning. Partly cloudy. Not as warm. Highs 74 to 78.

Monday Night: Partly cloudy. Colder. Lows 44 to 53.

Tuesday: Mostly cloudy in the morning and becoming partly cloudy. Highs 66 to 70.

Tuesday Night: Mostly clear in the evening and becoming partly cloudy. Lows 43 to 51.

Wednesday: Partly cloudy in the morning and becoming mostly sunny. Highs 72 to 75.

Wednesday Night: Mostly clear in the evening and becoming partly cloudy. Lows 45 to 52.

Thursday: Partly cloudy. Highs 71 to 76.
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.