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



AMERICAN RIVER - FOLSOM LAKE (FOLC1)
Latitude: 38.71º NLongitude: 121.16º WElevation: 350 Feet
Location: Sacramento County in CaliforniaBulletin Group: Lower SacramentoRiver Group: American
Issuance Time: Jan 07, 2026 at 3:06 PM PST
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

5- and 10-day ensemble products for this location are regulated forecasts that include outflow from Lake Tahoe. Longer-range products are unregulated forecasts that do not include Lake Tahoe.
Short-Range Peak Exceedance Plot   Product Info.   CSV Ensemble Files (Data in kcfs): Forecast Group | FOLC1


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Location Photographs

ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Partly cloudy. A slight chance of rain late in the evening. A chance of rain after midnight, then a slight chance of rain late in the night. Patchy fog late in the night. Lows around 38. Southwest winds up to 10 mph with gusts to around 25 mph.

Thursday: Patchy fog in the morning. Mostly sunny. Highs 47 to 52. Northwest winds up to 15 mph with gusts to around 25 mph.

Thursday Night: Mostly clear. Lows 31 to 39. North winds 10 to 15 mph with gusts to around 30 mph.

Friday: Areas of frost in the morning. Mostly sunny. Highs around 49. North winds up to 10 mph with gusts to around 25 mph.

Friday Night: Mostly clear. Areas of frost and patchy fog after midnight. Lows around 35. Light winds.

Saturday: Mostly cloudy. Areas of frost and patchy fog. Highs around 51.

Saturday Night: Mostly cloudy. Patchy fog. Lows around 37.

Sunday: Mostly cloudy. Patchy fog. Highs around 52.

Sunday Night: Partly cloudy. Patchy fog. Lows around 38.

Monday and Monday Night: Mostly clear. Patchy fog. Highs around 54. Lows around 39.

Tuesday: Partly cloudy. Patchy fog. Highs 53 to 59.

Tuesday Night: Mostly clear. Patchy fog. Lows 39 to 45.

Wednesday: Partly cloudy. Patchy fog. Highs 54 to 60.