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



NAPA RIVER - SAINT HELENA (SHEC1)
Latitude: 38.51º NLongitude: 122.45º WElevation: 195 Feet
Location: Napa County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: May 02, 2024 at 9:30 AM PDT

Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Flow data on this product are unregulated / full-natural flow and are based on mean daily flow.
Long-Range Build-Your-Own Products               Product InformationCSV Ensemble File Download (Data in kcfs):  SHEC1
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Official 7 Day National Weather Service Forecast   (CAZ506)
Rest of Tonight: Clear. Lows in the upper 40s to mid 50s. Northwest winds 10 to 20 mph.

Friday: Sunny. Highs in the mid 60s to lower 80s. West winds 10 to 20 mph.

Friday Night: Partly cloudy in the evening. Rain after midnight. Lows in the mid 40s to lower 50s. West winds 10 to 20 mph.

Saturday: Rain in the morning, then a chance of rain in the afternoon. Highs in the 50s to lower 60s. West winds 10 to 20 mph.

Saturday Night: Mostly clear. Lows in the 30s to upper 40s. West winds 10 to 20 mph.

Sunday: Sunny. Highs in the upper 50s to mid 60s.

Sunday Night: Clear. Lows in the 30s to upper 40s.

Monday and Monday Night: Mostly clear. Highs in the 60s to lower 70s. Lows in the 40s to lower 50s.

Tuesday: Sunny. Highs in the 60s to mid 70s.

Tuesday Night through Thursday: Clear. Lows in the 40s to mid 50s. Highs in the upper 60s to lower 80s.