Napa River

Near St Helena USGS: 11456000 Provisional Data Last Updated: May 11, 09:00 PM Pacific Daylight Time

Current Flow

15.2 cfs

Flow Conditions Normal Flow Is Falling 25th–75th Percentile

No Water Temp Probe

Expected Weather

Temp --°F

Wind -- mph

Rain Chance --%

Pressure -- hPa

Location

System Insights

Typical seasonal flows for this small stream.

Verify access, permits, and local conditions before entering any waterway.

Today's Weather

Forecast Details

Morning

At 6 AM: 54°F and Fog, wind E at 2 mph. By 10 AM: 63°F and Partly Cloudy, wind SE at 3 mph.

Afternoon/Evening

At 2 PM: 85°F and Mainly Clear, wind SE at 5 mph. By 6 PM: 86°F and Mainly Clear, wind SE at 8 mph.

Overnight

Dropping from 64°F at 10 PM to 53°F by 4 AM. Conditions Fog with wind SE at 2 mph.

3-Day Outlook

🌘 Waning Crescent

Today, May 11

🌫️

89° / 54°

Chance of Rain: 0%

🌅 6:01 AM 🌇 8:10 PM

Tuesday, May 12

🌫️

82° / 52°

Chance of Rain: 0%

🌅 6:00 AM 🌇 8:11 PM

Wednesday, May 13

☀️

77° / 52°

Chance of Rain: 2%

🌅 5:59 AM 🌇 8:12 PM

Flow Trend & 7-Day Forecast

Source: USGS

Current (CFS)

7-Day Forecast

Historical Median

Normal Range

7-Day Water Temperature (°F)