Weather Forecast for Houston

Texas, United States of America

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Mist

Current Weather - Houston: 27°C

Texas, United States of America

Mist

Feels like 32°C

Wind

12 km/h E

Humidity

89%

Pressure

1014 mb

UV Index

9

Visibility

2 km

Heavy rain

Heavy rain

Saturday, June 20, 2026

High

30°C

Low

25°C

Rain Chance

87%

Hourly Forecast

Patchy rain nearby 25°C
19:00
Patchy rain nearby 25°C
20:00
Clear 25°C
21:00
Clear 25°C
22:00
Clear 26°C
23:00
Jun 21

Day Statistics

Maximum Wind

15 km/h

Humidity

92%

Precipitation

69 mm

UV Index

9

Visibility

10 km

Rain Chance

87%

Snow Chance

0%

Sun & Moon

Sunrise

06:21 AM

Sunset

08:24 PM

Moonrise

12:07 PM

Moonset

12:17 AM

Moon Phase

First Quarter

Moon Illumination

38%

Air Quality

PM2.5

10.9

μg/m³

PM10

13.9

μg/m³

NO₂

10.9

μg/m³

O₃

44.2

μg/m³

SO₂

2.2

μg/m³

CO

142.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

286.61

Diffuse Radiation

145.53

DNI

0

GTI

0

Weather Alerts

Heat Advisory issued June 20 at 12:12AM CDT until June 20 at 10:00PM CDT by NWS Houston/Galveston TX

Montgomery; Northern Liberty; Waller; Inland Harris; Chambers; Fort Bend; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Brazoria; Coastal Galveston; Brazoria Islands; Galveston Island; Bolivar Peninsula Jun 20, 12:12 AM - Jun 20, 08:15 AM
Severity: Moderate Urgency: Expected

* WHAT...Heat index values approaching 108 degrees Fahrenheit (42 degrees Celsius) possible * WHERE...A portion of southeast Texas. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Event: Heat Advisory Certainty: Likely Category: Met

Heat Advisory issued June 20 at 8:04AM CDT until June 20 at 10:00PM CDT by NWS Houston/Galveston TX

Montgomery; Northern Liberty; Waller; Inland Harris; Chambers; Fort Bend; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Brazoria; Coastal Galveston; Brazoria Islands; Galveston Island; Bolivar Peninsula Jun 20, 08:04 AM - Jun 20, 10:00 PM
Severity: Moderate Urgency: Expected

* WHAT...Heat index values approaching 108 degrees Fahrenheit (42 degrees Celsius) possible * WHERE...A portion of southeast Texas. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Event: Heat Advisory Certainty: Likely Category: Met