• Early AM

    Jul 28

    Lo 54°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 28

    93°Lo 55°

    Mostly sunny and hot

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Fri

    Jul 29

    93°Lo 54°

    Hot with plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Jul 30

    89°Lo 55°

    Mostly sunny and warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Jul 31

    86°Lo 54°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Next 8 hours >
  Thu
4am
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  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Clear
Clear
Clear
Sunny
Mostly Cloudy
Partly Cloudy
Partly Sunny
Mostly Sunny
Temp (°F) 55° 55° 57° 59° 61° 66° 72° 77°
RealFeel® 55° 55° 57° 60° 62° 68° 76° 83°
Humidity 90% 89% 79% 84% 82% 72% 58% 53%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
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Snow
 
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Ice
 
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  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 4 W 4 W 4 W 5 W 5 W 5 WSW 6 WSW 6 SW
UV Index 0 0 0 0 1 2 4 6
Cloud Cover 0% 4% 7% 9% 84% 66% 41% 19%
Dew Point 52° 52° 50° 54° 56° 57° 56° 59°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Jul 28

more Historical Weather Data >
  Today Normal Record 7/28/2015
High 93° 86° N/A 89°
Low 55° 52° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 14:14 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:30 AM with 14:08 of moolight, then sets at 3:38 PM

Napa Weather Report

Oppressive heat to envelop the western US as late-week highs soar 10 to 15 degrees Fahrenheit above average

July 28, 2016; 4:34 AM ET

Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps