Napa, CA Weather Forecast
Napa County, California
Live radar, warnings and storm tracking for Napa, with free alerts the moment it counts.
The next few hours
Coastal Flood Advisory in effect for this location
A Coastal Flood Advisory is in effect for this location. It runs for about another 43 hours.
It is 59° with a dew point of 46°, which is dry for this time of year. The sky is clear.
Pressure is easing down, 0.03 inHg over the last hour. The wind backs into the southwest around 11 PM, which is the turn that usually comes ahead of the change rather than after it. The first rain arrives between 4 AM and 5 AM, with the best chance of it around 8 AM.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
A long wet stretch ahead
Wet weather moves in around 4 AM. Total accumulation over the window comes to about 0.07 in.
The overnight low settles near 46°. Tomorrow reaches 69°, 11° warmer than today. It also gets muggier, so tomorrow will feel warmer than the number on its own suggests.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
40–69°F across the weekThe week runs between 40° and 69°, with tomorrow the warmest day of it. There is no real trend across it: one day looks much like the next. Friday is the wettest day, peaking near 100%. 3 of the 7 days stay dry.
Free alerts for Napa
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Napa, CA at a glance
Napa is home to about 77,492 people in Napa County, across 18 square miles. It ranks 111th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Yountville, 7 miles away.
- County
- Napa County
- Population
- 77,492 2023 est.
- Land area
- 18 sq mi
- People per sq mi
- 4,294
- Forecast point
- 38.2979°N, 122.3007°W
How well can the network see Napa?
The nearest Doppler radar is KDAX (Sacramento, CA), to the ENE. Its lowest scan passes about 2,400 ft above Napa. Close enough to see rotation in the low part of a storm, where tornadoes form. Napa is closer to its radar than 61% of US cities.
The closest weather station is KAPC (Napa Cnty Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Napa
- Yountville, CA7 mi
- American Canyon, CA9 mi
- Sonoma, CA9 mi
- Vallejo, CA13 mi
- Fairfield, CA15 mi
- Suisun City, CA16 mi
- St. Helena, CA17 mi
- Benicia, CA17 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →