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

Areas of Severe Thunderstorms and Excessive Rainfall Thursday

Severe thunderstorms posing a risk for strong gusts and/or large hail are possible across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic Thursday afternoon and evening. Excessive rainfall may bring flash and urban flooding over the Mid-Mississippi and Ohio Valleys, and Mid-Atlantic on Thursday. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

84°F

29°C

Humidity 63%
Wind Speed S 9 mph
Barometer 29.99 in (1014.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 9 Jul 12:53 am CDT
Extended Forecast for

Melissa TX

  • Overnight

    Overnight: Clear, with a low around 78. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 103. Southwest wind 10 to 15 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 98. Heat index values as high as 101. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 97. South wind around 10 mph.

    High: 97 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 93. South southwest wind around 5 mph.

    High: 93 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. East southeast wind around 5 mph.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 78. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 103. Southwest wind 10 to 15 mph.
Thursday Night
Clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 98. Heat index values as high as 101. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 76. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 97. South wind around 10 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 93. South southwest wind around 5 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. East southeast wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melissa TX
 33.28°N 96.57°W (Elev. 646 ft)
Last Update:
1:26 am CDT Jul 9, 2026
Forecast Valid:
1am CDT Jul 9, 2026-6pm CDT Jul 15, 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