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Napa, CA

58°F
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Napa

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58°
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Napa, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 AM

54°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindN 4 mph

Air QualityPoor

Wind Gusts4 mph

Humidity97%

Indoor Humidity59% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

53°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindN 4 mph

Air QualityPoor

Wind Gusts4 mph

Humidity100%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

57°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™59°

WindNNE 4 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts5 mph

Humidity86%

Indoor Humidity59% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

68°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™65°

WindNE 5 mph

Air QualityPoor

Max UV Index1.6 (Low)

Wind Gusts6 mph

Humidity62%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

75°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™73°

WindENE 5 mph

Air QualityPoor

Max UV Index2.5 (Low)

Wind Gusts6 mph

Humidity49%

Indoor Humidity49% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

83°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™80°

Heat Index82°

WindESE 5 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts6 mph

Humidity39%

Indoor Humidity39% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

88°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™86°

Heat Index87°

WindSE 6 mph

Air QualityFair

Max UV Index4.3 (Moderate)

Wind Gusts7 mph

Humidity32%

Indoor Humidity32% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

93°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™91°

Heat Index91°

WindS 7 mph

Air QualityFair

Max UV Index4.6 (Moderate)

Wind Gusts8 mph

Humidity27%

Indoor Humidity27% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

96°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™94°

Heat Index94°

WindSSW 7 mph

Air QualityFair

Max UV Index4.3 (Moderate)

Wind Gusts8 mph

Humidity24%

Indoor Humidity24% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

99°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™96°

Heat Index96°

WindSW 8 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts9 mph

Humidity22%

Indoor Humidity22% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

100°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™97°

Heat Index98°

WindSW 8 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts12 mph

Humidity20%

Indoor Humidity20% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

97°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™95°

Heat Index95°

WindWSW 7 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts15 mph

Humidity21%

Indoor Humidity21% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

94°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

RealFeel Shade™92°

Heat Index91°

WindWSW 7 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts10 mph

Humidity25%

Indoor Humidity25% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

87°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

Heat Index85°

WindW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity33%

Indoor Humidity33% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

81°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

Heat Index81°

WindWNW 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity42%

Indoor Humidity42% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

76°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

WindWNW 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity48%

Indoor Humidity48% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

73°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

WindNW 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity53%

Indoor Humidity53% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

70°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

11:00 AM Saturday - 10:00 PM Monday

WindNNW 4 mph

Air QualityFair

Wind Gusts4 mph

Humidity58%

Indoor Humidity58% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Napa

AccuWeather's hourly forecast for Napa provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 54° with a RealFeel® of 55°, mostly clear with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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