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Katy, TX

77°F
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Katy, TX Weather
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3 AM

76°
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 34%
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Mostly cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday
alerts

Tropical Cyclone Statement

10:59 AM Tuesday - 6:45 AM Wednesday

WindESE 8 mph

Air QualityFair

Wind Gusts13 mph

Humidity97%

Indoor Humidity95% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling1400 ft

4 AM

75°
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 40%
Chevron down
Showers
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday
alerts

Tropical Cyclone Statement

10:59 AM Tuesday - 6:45 AM Wednesday

WindESE 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity98%

Indoor Humidity95% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1100 ft

5 AM

75°
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 36%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday
alerts

Tropical Cyclone Statement

10:59 AM Tuesday - 6:45 AM Wednesday

WindESE 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity99%

Indoor Humidity95% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling1300 ft

6 AM

74°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday
alerts

Tropical Cyclone Statement

10:59 AM Tuesday - 6:45 AM Wednesday

WindE 8 mph

Air QualityFair

Wind Gusts13 mph

Humidity100%

Indoor Humidity95% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1500 ft

7 AM

75°
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 37%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™82°

WindE 10 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts13 mph

Humidity99%

Indoor Humidity95% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1700 ft

8 AM

77°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™84°

WindE 13 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts14 mph

Humidity96%

Indoor Humidity95% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1600 ft

9 AM

79°
RealFeel® 87°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™87°

Heat Index83°

WindE 15 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts17 mph

Humidity92%

Indoor Humidity92% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1500 ft

10 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 70%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™83°

Heat Index89°

WindESE 18 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts23 mph

Humidity87%

Indoor Humidity87% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.40 in

Visibility2 mi

Cloud Ceiling1500 ft

11 AM

83°
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 84%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™84°

Heat Index92°

WindESE 21 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts25 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.40 in

Visibility2 mi

Cloud Ceiling2000 ft

12 PM

82°
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 84%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™84°

Heat Index92°

WindESE 23 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts28 mph

Humidity92%

Indoor Humidity92% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.40 in

Visibility2 mi

Cloud Ceiling2000 ft

1 PM

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 84%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™86°

Heat Index92°

WindSE 17 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts24 mph

Humidity92%

Indoor Humidity92% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.40 in

Visibility2 mi

Cloud Ceiling2000 ft

2 PM

82°
RealFeel® 90°
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 69%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™87°

Heat Index92°

WindSE 12 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts21 mph

Humidity92%

Indoor Humidity92% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.35 in

Visibility2 mi

Cloud Ceiling2000 ft

3 PM

89°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™95°

Heat Index101°

WindSE 15 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts23 mph

Humidity69%

Indoor Humidity69% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling3500 ft

4 PM

87°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™92°

Heat Index98°

WindSE 20 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts25 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling3700 ft

5 PM

84°
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 84%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™88°

Heat Index97°

WindSSE 23 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts28 mph

Humidity86%

Indoor Humidity86% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.35 in

Visibility2 mi

Cloud Ceiling2000 ft

6 PM

82°
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 84%
Chevron down
Rain
alerts

Flood Watch

1:00 PM Sunday - 7:00 PM Wednesday

RealFeel Shade™86°

Heat Index92°

WindSSE 20 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts25 mph

Humidity92%

Indoor Humidity92% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.35 in

Visibility2 mi

Cloud Ceiling2000 ft

7 PM

83°
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 84%
Chevron down
Rain

RealFeel Shade™85°

Heat Index92°

WindSSE 15 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts22 mph

Humidity82%

Indoor Humidity82% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.35 in

Visibility2 mi

Cloud Ceiling2000 ft

8 PM

84°
RealFeel® 90°
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 49%
Chevron down
Cloudy

RealFeel Shade™90°

Heat Index94°

WindSSE 17 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts23 mph

Humidity80%

Indoor Humidity80% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

83°
RealFeel® 90°
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 49%
Chevron down
Cloudy

Heat Index92°

WindSSE 16 mph

Air QualityFair

Wind Gusts21 mph

Humidity82%

Indoor Humidity82% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

81°
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 67%
Chevron down
Rain

Heat Index89°

WindSSE 15 mph

Air QualityFair

Wind Gusts17 mph

Humidity88%

Indoor Humidity88% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Rain0.16 in

Visibility4 mi

Cloud Ceiling2000 ft

11 PM

81°
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 49%
Chevron down
Cloudy

Heat Index88°

WindSSE 14 mph

Air QualityFair

Wind Gusts16 mph

Humidity90%

Indoor Humidity90% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Katy

AccuWeather's hourly forecast for Katy provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 76° with a RealFeel® of 83°, mostly cloudy with a 34% 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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