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Cupertino, CA

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

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

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12 PM

91°
RealFeel® 95°
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.
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rain drop 0%
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Sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™89°

Heat Index89°

WindNNW 8 mph

Air QualityPoor

Max UV Index6.0 (High)

Wind Gusts9 mph

Humidity29%

Indoor Humidity29% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

94°
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%
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Sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™91°

Heat Index91°

WindNNW 9 mph

Air QualityPoor

Max UV Index6.7 (High)

Wind Gusts12 mph

Humidity26%

Indoor Humidity26% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

96°
RealFeel® 98°
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%
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Mostly sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™93°

Heat Index94°

WindNW 12 mph

Air QualityPoor

Max UV Index6.0 (High)

Wind Gusts15 mph

Humidity25%

Indoor Humidity25% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

98°
RealFeel® 98°
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%
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Mostly sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™94°

Heat Index96°

WindNW 12 mph

Air QualityPoor

Max UV Index4.6 (Moderate)

Wind Gusts16 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

96°
RealFeel® 95°
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%
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Mostly sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™92°

Heat Index94°

WindNW 13 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts16 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

93°
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
Mostly sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™90°

Heat Index90°

WindNW 13 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts17 mph

Humidity25%

Indoor Humidity25% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

90°
RealFeel® 88°
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%
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Partly sunny
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™87°

Heat Index88°

WindNW 10 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts14 mph

Humidity28%

Indoor Humidity28% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover42%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

86°
RealFeel® 83°
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%
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Intermittent clouds
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

RealFeel Shade™83°

Heat Index84°

WindNW 9 mph

Air QualityPoor

Max UV Index0.2 (Low)

Wind Gusts10 mph

Humidity33%

Indoor Humidity33% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover59%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

82°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

Heat Index82°

WindNW 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity39%

Indoor Humidity39% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

79°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds
alerts

Heat Advisory

10:00 AM Wednesday - 10:00 PM Thursday

WindNW 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity45%

Indoor Humidity45% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover52%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

75°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity51%

Indoor Humidity51% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover29%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 6 mph

Air QualityPoor

Wind Gusts6 mph

Humidity57%

Indoor Humidity57% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Cupertino

AccuWeather's hourly forecast for Cupertino provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 91° with a RealFeel® of 95°, sunny 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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World North America United States California Cupertino

Weather Near Cupertino:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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