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

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SACRAMENTO RIVER - FREMONT WEIR (FMWC1)
Latitude: 38.77º NLongitude: 121.67º WElevation: 40 Feet
Location: Sutter & Yolo County in CaliforniaRiver Group: Lower Sacramento
Monitor Stage: 32.0 FeetFlood Stage: 39.5 FeetDanger Stage: 40.5 Feet

Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2025* 187,030 36.36 Feb 09, 2025
2024* 113,000 34.44 Feb 23, 2024
2023* 122,700 34.74 Jan 15, 2023
2022* 35,400 26.35 Oct 27, 2021
2021* 16,600 17.75 Jan 31, 2021
 Historical High Stage/Flow Events (Period of Record - Jan 1932 to Present) - Ranked by Flow
1997* 390,000*** 42.47** Jan 02, 1997
1986* 355,000*** 41.70 Feb 20, 1986
1983* 315,000 39.00 Mar 04, 1983
2006* 273,670 39.99 Jan 03, 2006
1980* 263,900 38.30 Feb 22, 1980
1974* 249,300 38.10 Jan 20, 1974
 * Discharge affected by regulation or diversion
 ** Peak stage of record (Weir overflow depth of 8.97 feet)
 *** Flow estimated
 **** Datum changed from NGVD29 to NAVD88 on 10/01/2016. The difference is -1.45 ft and must be applied to all data before date to convert to NAVD88
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Rain showers and a slight chance of thunderstorms early in the evening, then rain likely late in the evening. Rain showers and a slight chance of thunderstorms after midnight, then a chance of rain late in the night. Lows 46 to 52. East winds up to 10 mph. Gusts up to 30 mph after midnight.

Wednesday: Rain likely in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Highs 54 to 60. Southeast winds 10 to 20 mph with gusts to around 30 mph.

Wednesday Night: Mostly cloudy. Rain likely in the evening, then a slight chance of rain after midnight. Lows 41 to 47. East winds up to 10 mph. Gusts up to 20 mph in the evening.

Thursday: Partly cloudy in the morning then clearing. Highs around 60. North winds up to 10 mph.

Thursday Night: Clear. Patchy fog after midnight. Lows 38 to 44. Northwest winds up to 10 mph.

Friday: Mostly sunny. Patchy fog. Highs around 61.

Friday Night: Mostly cloudy. Lows around 43.

Saturday: Cloudy. Highs 54 to 60.

Saturday Night: Cloudy with a chance of rain. Lows around 45.

Sunday through washingtons birthday: Rain. Highs 50 to 58. Lows around 44.

Monday Night and Tuesday: Rain. Lows around 42. Highs around 50.
Flood Impacts
44.0 FeetStages above 44.0 feet result in flooding outside the levees. Top of levee.
37.3 FeetAt 5.3 feet of overflow Egbert Tract floods.
33.1 FeetAt one foot of overflow, the river road to Woodland is closed due to flooding.
32.0 FeetFremont Weir crest elevation. Overflow begins into the Yolo Bypass flooding agricultural lands.
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 Sacramento 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.