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Lewisville, TX

88°F
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Lewisville

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88°
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Lewisville, TX Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 AM

88°
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 44%
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Mostly clear
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

Heat Index89°

WindSW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity46%

Indoor Humidity46% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover13%

Visibility10 mi

Cloud Ceiling33000 ft

5 AM

86°
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 34%
Chevron down
Mostly clear
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

Heat Index87°

WindSW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity47%

Indoor Humidity47% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

85°
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 34%
Chevron down
Mostly clear
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

Heat Index87°

WindSW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity50%

Indoor Humidity50% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

84°
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 22%
Chevron down
Mostly sunny
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

RealFeel Shade™83°

Heat Index85°

WindSW 7 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts8 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point65° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

84°
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
Sunny
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

RealFeel Shade™83°

Heat Index86°

WindSW 8 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts9 mph

Humidity52%

Indoor Humidity52% (Humid)

Dew Point65° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

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
Sunny
alerts

Heat Advisory

12:00 PM Saturday - 12:00 PM Tuesday

RealFeel Shade™87°

Heat Index90°

WindWSW 8 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts10 mph

Humidity44%

Indoor Humidity44% (Humid)

Dew Point64° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

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

12:00 PM Saturday - 12:00 PM Tuesday

RealFeel Shade™91°

Heat Index94°

WindWSW 9 mph

Air QualityFair

Max UV Index4.3 (Moderate)

Wind Gusts10 mph

Humidity37%

Indoor Humidity37% (Humid)

Dew Point63° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

97°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

12:00 PM Saturday - 12:00 PM Tuesday

RealFeel Shade™95°

Heat Index98°

WindSW 8 mph

Air QualityFair

Max UV Index6.5 (High)

Wind Gusts10 mph

Humidity32%

Indoor Humidity32% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

100°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™98°

Heat Index101°

WindSSW 8 mph

Air QualityFair

Max UV Index8.9 (Very High)

Wind Gusts9 mph

Humidity27%

Indoor Humidity27% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

103°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™100°

Heat Index104°

WindSSW 8 mph

Air QualityFair

Max UV Index10.0 (Very High)

Wind Gusts10 mph

Humidity24%

Indoor Humidity24% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

105°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™102°

Heat Index106°

WindS 9 mph

Air QualityPoor

Max UV Index8.9 (Very High)

Wind Gusts10 mph

Humidity22%

Indoor Humidity22% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

106°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™103°

Heat Index107°

WindS 9 mph

Air QualityPoor

Max UV Index6.5 (High)

Wind Gusts10 mph

Humidity22%

Indoor Humidity22% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

106°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™103°

Heat Index107°

WindSSE 9 mph

Air QualityPoor

Max UV Index4.3 (Moderate)

Wind Gusts12 mph

Humidity21%

Indoor Humidity21% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

108°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™105°

Heat Index108°

WindSSE 9 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts12 mph

Humidity20%

Indoor Humidity20% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

106°
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™103°

Heat Index106°

WindSSE 9 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts13 mph

Humidity22%

Indoor Humidity22% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

104°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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

Extreme Heat Warning

12:00 PM Tuesday - 8:00 PM Tuesday

RealFeel Shade™102°

Heat Index105°

WindS 9 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts15 mph

Humidity23%

Indoor Humidity23% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

103°
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
Mostly sunny

RealFeel Shade™100°

Heat Index103°

WindS 9 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts15 mph

Humidity24%

Indoor Humidity24% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover13%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

100°
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
Mostly clear

Heat Index101°

WindS 9 mph

Air QualityFair

Wind Gusts16 mph

Humidity26%

Indoor Humidity26% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

98°
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%
Chevron down
Clear

Heat Index98°

WindSSW 9 mph

Air QualityFair

Wind Gusts14 mph

Humidity29%

Indoor Humidity29% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

96°
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
Clear

Heat Index97°

WindS 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity32%

Indoor Humidity32% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Lewisville

AccuWeather's hourly forecast for Lewisville provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 88° with a RealFeel® of 86°, mostly clear with a 44% 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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