Marine Weather Net

Napa, CA Weather Forecast




Napa, California

 Lat: 38.24N, Lon: 122.06W

Current Conditions Updated: 1035 PM PST SUN JAN 18 2026

Fair
Temp: 42°F
  • Humidity:
  • 93%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.1 in.
  • Dewpoint:
  • 41°F
  • Heat index:
  • 42°F

  • Sunrise:
  • 7:21 AM PST
  • Sunset:
  • 5:14 PM PST
  • Moonrise:
  • 8:11 AM PST
  • Moonset:
  • 6:20 PM PST

TONIGHT

MOSTLY CLOUDY
Lo: 41°F

MARTIN LUTHER KING JR DAY

MOSTLY SUNNY
Hi: 58°F
Lo: 41°F

TUESDAY

MOSTLY CLOUDY
Hi: 60°F
Lo: 42°F

WEDNESDAY

MOSTLY CLOUDY
Hi: 59°F
Lo: 44°F
Weather Forecast In Detail:
Forecast Issued: 700 PM PST Sun Jan 18 2026

Tonight...Mostly cloudy. Haze and patchy dense fog. Lows 38 to 43. Light winds.
Martin Luther King Jr Day...Mostly cloudy in the morning then becoming mostly sunny. Haze and patchy dense fog through the day. Highs around 58. Northeast winds up to 10 mph.
Monday Night...Partly cloudy. Patchy fog through the night. Lows around 41. Light winds.
Tuesday...Patchy fog in the morning. Mostly cloudy. Highs around 60. Northeast winds up to 10 mph.
Tuesday Night...Mostly cloudy. Patchy fog through the night. Lows around 42. Light winds.
Wednesday...Mostly cloudy. Patchy fog. Highs around 59.
Wednesday Night...Mostly cloudy. Patchy fog. Lows around 44.
Thursday...Mostly cloudy. Patchy fog. Highs around 61.
Thursday Night...Mostly clear. Patchy fog. Lows around 43.
Friday...Mostly cloudy. Patchy fog. Highs around 59.
Friday Night...Mostly clear. Patchy fog. Lows around 43.
Saturday...Mostly cloudy. Patchy fog. Highs around 59.
Saturday Night...Partly cloudy. Patchy fog. Lows around 42.
Sunday...Mostly cloudy. Patchy fog. Highs around 58. && temperature / precipitation fairfield/suisun 39 59 39 61 / 0 0 0 0
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