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Sunnyvale, TX

80°F
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Sunnyvale, TX Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 AM

82°
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%
Chevron down
Mostly clear

Heat Index86°

WindS 13 mph

Air QualityFair

Wind Gusts20 mph

Humidity71%

Indoor Humidity71% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

2 AM

81°
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%
Chevron down
Cloudy

Heat Index84°

WindS 12 mph

Air QualityFair

Wind Gusts17 mph

Humidity73%

Indoor Humidity73% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling26500 ft

3 AM

80°
RealFeel® 82°
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
Cloudy

Heat Index83°

WindSSW 9 mph

Air QualityFair

Wind Gusts16 mph

Humidity75%

Indoor Humidity75% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling22900 ft

4 AM

78°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

Heat Index80°

WindSSW 8 mph

Air QualityFair

Wind Gusts14 mph

Humidity78%

Indoor Humidity78% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling19400 ft

5 AM

77°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts14 mph

Humidity80%

Indoor Humidity80% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling22900 ft

6 AM

76°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling26500 ft

7 AM

77°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

RealFeel Shade™79°

WindS 12 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts16 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

78°
RealFeel® 82°
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
Partly sunny

RealFeel Shade™79°

WindS 13 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts18 mph

Humidity80%

Indoor Humidity80% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

80°
RealFeel® 85°
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
Partly sunny

RealFeel Shade™82°

Heat Index83°

WindSSW 14 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts23 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

82°
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%
Chevron down
Partly sunny

RealFeel Shade™84°

Heat Index87°

WindSSW 14 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts25 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

85°
RealFeel® 93°
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
Partly sunny

RealFeel Shade™87°

Heat Index91°

WindSSW 14 mph

Air QualityPoor

Max UV Index8.1 (Very High)

Wind Gusts27 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

88°
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
Partly sunny

RealFeel Shade™89°

Heat Index94°

WindSSW 14 mph

Air QualityPoor

Max UV Index11.1 (Extreme)

Wind Gusts29 mph

Humidity57%

Indoor Humidity57% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

90°
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
Partly sunny

RealFeel Shade™90°

Heat Index96°

WindSSW 14 mph

Air QualityPoor

Max UV Index11.8 (Extreme)

Wind Gusts30 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

92°
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
Partly sunny

RealFeel Shade™92°

Heat Index98°

WindSSW 14 mph

Air QualityPoor

Max UV Index11.1 (Extreme)

Wind Gusts33 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover42%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

93°
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
Partly sunny

RealFeel Shade™93°

Heat Index99°

WindSSW 14 mph

Air QualityPoor

Max UV Index8.1 (Very High)

Wind Gusts36 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

94°
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%
Chevron down
Mostly sunny

RealFeel Shade™94°

Heat Index100°

WindSSW 14 mph

Air QualityPoor

Max UV Index5.0 (Moderate)

Wind Gusts36 mph

Humidity44%

Indoor Humidity44% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

95°
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%
Chevron down
Mostly sunny

RealFeel Shade™95°

Heat Index101°

WindSSW 14 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts35 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

94°
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
Mostly sunny

RealFeel Shade™94°

Heat Index100°

WindS 14 mph

Air QualityPoor

Max UV Index2.1 (Low)

Wind Gusts33 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

92°
RealFeel® 94°
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

RealFeel Shade™93°

Heat Index98°

WindS 13 mph

Air QualityPoor

Max UV Index1.0 (Low)

Wind Gusts32 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

91°
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
Partly sunny

RealFeel Shade™92°

Heat Index97°

WindS 13 mph

Air QualityPoor

Max UV Index0.1 (Low)

Wind Gusts28 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

89°
RealFeel® 91°
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
Intermittent clouds

Heat Index95°

WindS 12 mph

Air QualityPoor

Wind Gusts24 mph

Humidity56%

Indoor Humidity56% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover53%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

86°
RealFeel® 89°
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
Intermittent clouds

Heat Index92°

WindS 12 mph

Air QualityPoor

Wind Gusts20 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

85°
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%
Chevron down
Intermittent clouds

Heat Index91°

WindS 12 mph

Air QualityPoor

Wind Gusts21 mph

Humidity66%

Indoor Humidity66% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Sunnyvale

AccuWeather's hourly forecast for Sunnyvale provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 82° with a RealFeel® of 83°, 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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