• Today

    Jul 30

    81°Lo 53°

    Clouds giving way to some sun

    Poor for home energy
    • Avg
      RealFeel
      67°
    • Hi
      RealFeel
      82°
    • Wind
      Speed
      9 mph
    more
  • Sun

    Jul 31

    84°Lo 53°

    Plenty of sunshine

    Poor for home energy
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      9 mph
  • Mon

    Aug 1

    85°Lo 52°

    Plenty of sunshine

    Poor for home energy
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      87°
    • Wind
      Speed
      8 mph
    more
  • Tue

    Aug 2

    87°Lo 54°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      6 mph
    more
  • Wed

    Aug 3

    88°Lo 52°

    Warm with plenty of sun

    Poor for home energy
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      6 mph
    more
Next Previous
Hi 84° RealFeel® 86° Precipitation 6%

Day

N

E

S

W

  • WSW 9 mph
  • Gusts: 15 mph

Plenty of sunshine

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 53° RealFeel® 51° Precipitation 1%

Night

N

E

S

W

  • W 6 mph
  • Gusts: 13 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2015
High 84° 86° N/A 76°
Low 53° 52° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:11 AM with 14:08 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:04 AM with 14:33 of moolight, then sets at 6:37 PM

Napa Weather Report

Western US: Diminishing heat to aid in firefighting efforts next week

July 30, 2016; 1:08 PM ET

As several large fires continue to rage across the western United States, weather conditions will gradually improve for firefighting efforts in the upcoming week. more >

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index