Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18° N Lon: 96.59° W Elev: 584 ft.

Fair

96°F

36°C

Humidity 35%
Wind Speed S 15 G 23 mph
Barometer 29.90 in (1011.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 9 Jul 6:53 pm CDT
Detailed forecast for

Collin County

Tonight
Clear. Lows around 80. South winds around 10 mph.
Friday
Sunny, hot with highs in the upper 90s. South winds 10 to 15 mph.
Friday Night
Clear. Lows around 80. South winds 5 to 10 mph.
Saturday
Sunny. Highs in the upper 90s. South winds 5 to 10 mph.
Saturday Night
Mostly clear in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 30 percent.
Sunday
Mostly sunny with a chance of thunderstorms. Showers likely in the morning, then a chance of showers in the afternoon. Highs in the mid 90s. Chance of rain 60 percent.
Sunday Night
Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the mid 70s. Chance of rain 50 percent.
Monday
Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.
Monday Night
Mostly clear. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid 70s.
Tuesday
Sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.
Tuesday Night
Mostly clear. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid 70s.
Wednesday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.
Wednesday Night
Partly cloudy. Lows in the mid 70s.
Thursday
Mostly sunny. Highs in the mid 90s.



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609 PM CDT Thu Jul 9 2026
 
 

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