MCKINNEY, TX 75069 Weather Forecast & Current Conditions

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MCKINNEY, TX
Current Weather

2:53 AM CDT SEP 8, 2026
Clear
82°F
Feels Like: 87°F
Dewpoint: 72°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: S at 5 mph
Pressure: 29.97 inches
Last 72 hours

Local Area Snow Depth

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MCKINNEY, TX 75069
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs around 100. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 106.
TONIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent.
WEDNESDAY
Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph.
WEDNESDAY NIGHT
Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph.
THURSDAY
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 107.
THURSDAY NIGHT
Partly cloudy. Lows in the mid 70s.
FRIDAY
Sunny, hot with highs in the upper 90s. Heat index values up to 105.
FRIDAY NIGHT
Mostly clear. Lows in the upper 70s.
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 upper 90s. Heat index values up to 110 in the afternoon.
SUNDAY NIGHT
Mostly clear. A 20 percent chance of showers in the evening. Lows in the mid 70s.
MONDAY
Sunny. Highs in the mid 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  9/ 7/2026
Tuesday
8 SEP 2026
MCKINNEY, TX 75069 weather forecast Day 1, 0 hours 1 AM 86° 91° Clear 2%

0% Thunder
( 3% severe)
S   6 61% 71°
Low 78° MCKINNEY, TX 75069 weather forecast Day 1, 3 hours 4 AM 82° 87° Clear S   3 72% 72°
High 100° MCKINNEY, TX 75069 weather forecast Day 1, 6 hours 7 AM 79° 82° Clear 1%

0% Thunder
( 4% severe)
SSE   3 79% 72°

Clear



MCKINNEY, TX 75069 weather forecast Day 1, 9 hours 10 AM 89° 97° Clear S   6 59% 73°
MCKINNEY, TX 75069 weather forecast Day 1, 12 hours 1 PM 97° 105° Partly Cloudy 2%

0% Thunder
( 20% severe)
SSE   10 43% 71°
MCKINNEY, TX 75069 weather forecast Day 1, 15 hours 4 PM 100° 106° Clear SSE   12 36% 68°
MCKINNEY, TX 75069 weather forecast Day 1, 18 hours 7 PM 97° 102° Partly Cloudy 2%

0% Thunder
( 10% severe)
SSE   12 39% 68°
MCKINNEY, TX 75069 weather forecast Day 1, 21 hours 10 PM 89° 95° Clear SSE   9 56% 71°
Wednesday
9 SEP 2026
MCKINNEY, TX 75069 weather forecast Day 2, 0 hours 1 AM 85° 90° Clear 1%

0% Thunder
( 3% severe)
S   7 63% 71°
Low 77° MCKINNEY, TX 75069 weather forecast Day 2, 3 hours 4 AM 82° 87° Partly Cloudy S   7 72% 72°
High 99° MCKINNEY, TX 75069 weather forecast Day 2, 6 hours 7 AM 79° 82° Clear 0%

0% Thunder
( 2% severe)
S   6 79% 72°

Clear



MCKINNEY, TX 75069 weather forecast Day 2, 9 hours 10 AM 88° 97° Clear S   8 63% 74°
MCKINNEY, TX 75069 weather forecast Day 2, 12 hours 1 PM 96° 103° Clear 3%

0% Thunder
( 10% severe)
S   10 43% 70°
MCKINNEY, TX 75069 weather forecast Day 2, 15 hours 4 PM 99° 104° Clear S   10 36% 67°
MCKINNEY, TX 75069 weather forecast Day 2, 18 hours 7 PM 96° 100° Partly Cloudy 1%

0% Thunder
( 5% severe)
SSE   10 39% 67°
MCKINNEY, TX 75069 weather forecast Day 2, 21 hours 10 PM 89° 94° Clear SSE   10 54% 70°

MCKINNEY, TX extended weather forecast

Thursday
10 SEP 2026
Friday
11 SEP 2026
Saturday
12 SEP 2026
Sunday
13 SEP 2026
Monday
14 SEP 2026
Low 76° Low 75° Low 73° Low 76° Low 75°
High 95° High 95° High 95° High 96° 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
21% Rain
Partly Cloudy
32% Rain
Partly Cloudy
22% Rain
Partly Cloudy
13% Rain
Clear
13% Rain
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