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)
Today: Mostly cloudy in the morning then becoming partly cloudy. Widespread fog and areas of frost in the morning. Areas of fog early in the afternoon. Highs 50 to 58. North winds up to 10 mph.

Tonight: Partly cloudy. Patchy fog after midnight. Lows around 37. Light winds.

Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Widespread fog and locally dense in the morning. Highs around 49. North winds up to 10 mph.

Tuesday Night: Mostly cloudy. Lows around 43. Light winds.

Wednesday: Cloudy. A chance of rain in the afternoon. Highs around 48. Light winds.

Wednesday Night: Rain. Lows around 46.

New Years Day: Rain. Highs 50 to 55.

Thursday Night through Friday Night: Rain. Lows 46 to 52. Highs 52 to 58.

Saturday and Saturday Night: Rain likely. Highs 50 to 56. Lows around 49.

Sunday: Mostly cloudy with a chance of rain. Highs around 53.
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.