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

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Mostly Cloudy

87°F

31°C

Humidity 67%
Wind Speed E 7 mph
Barometer 29.78 in (1007.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 18 Jun 8:53 pm CDT
Extended Forecast for

Melissa TX

  • Tonight

    Tonight: A chance of showers and thunderstorms between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 75. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Mostly Cloudy
    then T-storms

  • Juneteenth

    Juneteenth: Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. Some of the storms could produce heavy rainfall. High near 83. North northeast wind around 10 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 83 °F

    Heavy Rain

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. East wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Heat index values as high as 100. South southeast wind 5 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 78 °F

    Clear then
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93. South southwest wind around 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 75. South wind around 10 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 75. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. Some of the storms could produce heavy rainfall. High near 83. North northeast wind around 10 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. East wind 5 to 10 mph. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Heat index values as high as 100. South southeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 93. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. South wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93. South southwest wind around 15 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 75. South wind around 10 mph. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 90.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Melissa TX
 33.28°N 96.57°W (Elev. 646 ft)
Last Update:
6:06 pm CDT Jun 18, 2026
Forecast Valid:
9pm CDT Jun 18, 2026-6pm CDT Jun 25, 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