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

Hazardous Weather Conditions

Current conditions at

Bay City, Bay City Municipal Airport (KBYY)

Lat: 28.97°NLon: 95.86°WElev: 46ft.

Fair

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 23 Aug 7:55 am CDT
Extended Forecast for

5 Miles WNW Markham TX

Heat Advisory August 23, 08:13am until August 24, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 23, 08:13am until August 24, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Today

    High: 98 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 97. Heat index values as high as 106. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Southwest wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 78.

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Wednesday Night

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

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 98. Heat index values as high as 105. West wind 5 to 10 mph becoming south in the afternoon.
Tonight
Increasing clouds, with a low around 77. South wind 5 to 10 mph.
Monday
Sunny, with a high near 97. Heat index values as high as 106. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. Southwest wind 5 to 10 mph.
Tuesday Night
Clear, with a low around 78.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny, with a high near 97.
Thursday Night
Mostly clear, with a low around 78.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 77.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Markham TX
 28.99°N 96.15°W (Elev. 49 ft)
Last Update:
7:31 am CDT Aug 23, 2026
Forecast Valid:
8am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation