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



RUSSIAN RIVER - GEYSERVILLE (GEYC1)
Latitude: 38.71º NLongitude: 122.89º WElevation: 190 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jun 30, 2025 at 9:09 AM PDT
Action/Monitor: 38.0 FeetMinor Flood: 39.7 FeetModerate Flood: 46.0 FeetMajor Flood: 50.0 Feet
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  GEYC1

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Official 7 Day National Weather Service Forecast   (CAZ506)
Today: Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the lower 70s to mid 80s. Southwest winds 10 to 20 mph.

Tonight: Mostly clear in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the 50s. Southwest winds 10 to 20 mph.

Wednesday: Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the 70s to 80s. Southwest winds 10 to 20 mph.

Wednesday Night: Mostly clear. Lows in the 50s. West winds 10 to 20 mph.

Thursday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

Thursday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s to mid 50s.

Independence Day through Sunday: Mostly clear. Highs in the lower 70s to mid 80s. Lows in the upper 40s to mid 50s.

Sunday Night: Clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s.

Monday: Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to mid 80s.