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

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

76°F

24°C

Humidity 94%
Wind Speed SE 9 mph
Barometer 29.68 in (1004.2 mb)
Dewpoint 74°F (23°C)
Visibility 9.00 mi
Heat Index76°F (24°C)
Last update 18 Jun 6:53 am CDT
Extended Forecast for

Princeton TX

Heat Advisory June 18, 12:00pm until June 18, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 94. Heat index values as high as 106. Southeast wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely after 1am. Mostly cloudy, with a low around 77. East southeast wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 77 °F

    Partly Cloudy
    then T-storms
    Likely

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 88. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 74 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 5 to 10 mph.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. South wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Clear then
    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 10 to 15 mph.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 106. Southeast wind 5 to 10 mph.
Tonight
Showers and thunderstorms likely after 1am. Mostly cloudy, with a low around 77. East southeast wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Juneteenth
Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 88. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 94. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. South wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 10 to 15 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton TX
 33.19°N 96.49°W (Elev. 545 ft)
Last Update:
6:06 am CDT Jun 18, 2026
Forecast Valid:
7am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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