MCKINNEY, TX 75069 Weather Forecast & Current Conditions

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MCKINNEY, TX
Current Weather

3:53 AM CDT JUL 28, 2026
Clear
81°F
Feels Like: 85°F
Dewpoint: 72°F
Rel. Hum.: 74%
Visibility: 10 miles
Wind: S at 7 mph
Pressure: 29.86 inches
Last 72 hours

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MCKINNEY, TX 75069
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Sunny, hot with highs around 101. Southwest winds 5 to 10 mph. Heat index values up to 108 this afternoon.
TONIGHT
Mostly clear. Lows around 80. South winds 5 to 10 mph.
WEDNESDAY
Sunny, hot with highs around 100. South winds 5 to 10 mph. Heat index values up to 108 in the afternoon.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows around 80. South winds 5 to 10 mph.
THURSDAY
Sunny, hot with highs around 101. South winds 5 to 10 mph. Heat index values up to 111 in the afternoon.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 80s.
FRIDAY
Sunny, hot with highs around 100. Heat index values up to 110 in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 80s.
SATURDAY
Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
SATURDAY NIGHT
Mostly clear. Lows in the mid 70s.
SUNDAY
Sunny. Highs in the mid 90s.
SUNDAY NIGHT
Clear. Lows in the mid 70s.
MONDAY
Sunny, hot with highs in the upper 90s. Heat index values up to 105.

Visible Weather Satellite
MCKINNEY, TX 75069
Infrared Weather Satellite
MCKINNEY, TX 75069
NEXRAD Weather Radar
MCKINNEY, TX 75069

MCKINNEY, TX 3 hourly weather forecast

weather forecast created  7:00 PM CDT  7/27/2026
Tuesday
28 JUL 2026
MCKINNEY, TX 75069 weather forecast Day 1, 0 hours 1 AM 86° 89° Clear 0%

0% Thunder
( 1% severe)
S   8 53% 67°
Low 80° MCKINNEY, TX 75069 weather forecast Day 1, 3 hours 4 AM 83° 86° Clear S   10 61% 68°
High 102° MCKINNEY, TX 75069 weather forecast Day 1, 6 hours 7 AM 81° 84° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   9 67% 69°

Partly Cloudy



MCKINNEY, TX 75069 weather forecast Day 1, 9 hours 10 AM 91° 97° Partly Cloudy SW   9 50% 70°
MCKINNEY, TX 75069 weather forecast Day 1, 12 hours 1 PM 100° 106° Partly Cloudy 0%

0% Thunder
( 4% severe)
SSW   9 36% 68°
MCKINNEY, TX 75069 weather forecast Day 1, 15 hours 4 PM 101° 108° Partly Cloudy S   10 35% 68°
MCKINNEY, TX 75069 weather forecast Day 1, 18 hours 7 PM 99° 104° Partly Cloudy 0%

0% Thunder
( 2% severe)
SSE   10 36% 67°
MCKINNEY, TX 75069 weather forecast Day 1, 21 hours 10 PM 91° 95° Partly Cloudy S   7 47% 68°
Wednesday
29 JUL 2026
MCKINNEY, TX 75069 weather forecast Day 2, 0 hours 1 AM 86° 89° Partly Cloudy 1%

0% Thunder
( 3% severe)
S   7 55% 68°
Low 79° MCKINNEY, TX 75069 weather forecast Day 2, 3 hours 4 AM 84° 88° Partly Cloudy SSW   8 61% 69°
High 101° MCKINNEY, TX 75069 weather forecast Day 2, 6 hours 7 AM 81° 84° Partly Cloudy 0%

0% Thunder
( 3% severe)
SSW   8 69% 70°

Partly Cloudy



MCKINNEY, TX 75069 weather forecast Day 2, 9 hours 10 AM 91° 98° Partly Cloudy SW   8 52% 71°
MCKINNEY, TX 75069 weather forecast Day 2, 12 hours 1 PM 100° 107° Partly Cloudy 0%

0% Thunder
( 9% severe)
S   8 37% 69°
MCKINNEY, TX 75069 weather forecast Day 2, 15 hours 4 PM 100° 106° Partly Cloudy S   10 36% 68°
MCKINNEY, TX 75069 weather forecast Day 2, 18 hours 7 PM 99° 105° Partly Cloudy 0%

0% Thunder
( 3% severe)
SSE   10 37% 68°
MCKINNEY, TX 75069 weather forecast Day 2, 21 hours 10 PM 90° 95° Partly Cloudy SSE   7 50% 69°

MCKINNEY, TX extended weather forecast

Thursday
30 JUL 2026
Friday
31 JUL 2026
Saturday
1 AUG 2026
Sunday
2 AUG 2026
Monday
3 AUG 2026
Low 77° Low 78° Low 74° Low 67° Low 69°
High 102° High 106° High 98° High 95° High 96°
MCKINNEY, TX 75069 weather forecast Day 3 MCKINNEY, TX 75069 weather forecast Day 4 MCKINNEY, TX 75069 weather forecast Day 5 MCKINNEY, TX 75069 weather forecast Day 6 MCKINNEY, TX 75069 weather forecast Day 7
Partly Cloudy
12% Rain
Partly Cloudy
11% Rain
Partly Cloudy
11% Rain
Clear
2% Rain
Clear
9% Rain
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