National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Houston Intercontinental Airport (KIAH)

Lat: 29.98°NLon: 95.36°WElev: 89ft.

Mostly Cloudy

87°F

31°C

Humidity 77%
Wind Speed S 12 G 21 mph
Barometer 29.71 in (1006.1 mb)
Dewpoint 79°F (26°C)
Visibility 7.00 mi
Heat Index101°F (38°C)
Last update 18 Jun 9:53 am CDT
Extended Forecast for

3 Miles E Porter TX

Heat Advisory June 18, 08:00pm until June 20, 10:00pm
Extreme Heat Warning June 18, 11:00am until June 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning

  • Today

    Today: Mostly sunny, with a high near 96. Heat index values as high as 115. South wind 5 to 10 mph.

    High: 96 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 94. Heat index values as high as 107. South wind 5 to 10 mph.

    High: 94 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 79. Southeast wind 5 to 10 mph.

    Low: 79 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 79.

    Low: 79 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 96. Heat index values as high as 115. South wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 80. South wind 5 to 10 mph.
Juneteenth
Partly sunny, with a high near 94. Heat index values as high as 107. South wind 5 to 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 79. Southeast wind 5 to 10 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 79.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 79.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 77.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Porter TX
 30.11°N 95.24°W (Elev. 98 ft)
Last Update:
10:16 am CDT Jun 18, 2026
Forecast Valid:
10am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation