• Today

    Aug 4

    100°Lo 77°

    Partly sunny and very warm

    Good for home energy
    • Avg
      RealFeel
      93°
    • Hi
      RealFeel
      105°
    • Wind
      Speed
      10 mph
    more
  • Wed

    Aug 5

    99°Lo 79°

    Sunny and very warm

    Good for home energy
    • Avg
      RealFeel
      94°
    • Hi
      RealFeel
      105°
    • Wind
      Speed
      13 mph
  • Thu

    Aug 6

    101°Lo 78°

    Mostly sunny and very warm

    Good for home energy
    • Avg
      RealFeel
      94°
    • Hi
      RealFeel
      106°
    • Wind
      Speed
      13 mph
    more
  • Fri

    Aug 7

    101°Lo 77°

    Hot with plenty of sun

    Good for home energy
    • Avg
      RealFeel
      93°
    • Hi
      RealFeel
      107°
    • Wind
      Speed
      12 mph
    more
  • Sat

    Aug 8

    102°Lo 78°

    Very warm with plenty of sun

    Good for home energy
    • Avg
      RealFeel
      92°
    • Hi
      RealFeel
      105°
    • Wind
      Speed
      10 mph
    more
Next Previous
Hi 99° RealFeel® 105° Precipitation 5%

Day

N

E

S

W

  • S 13 mph
  • Gusts: 17 mph

Very warm with plenty of sunshine

  • Max UV Index: 10 (Extreme)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 79° RealFeel® 83° Precipitation 5%

Night

N

E

S

W

  • S 10 mph
  • Gusts: 15 mph

Clear and warm

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 5

more Historical Weather Data >
  Today Normal Record 8/5/2014
High 99° 94° N/A 93°
Low 79° 71° N/A 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 13:40 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:48 PM with 17:38 of moolight, then sets at 12:27 PM

Mckinney Weather Report

Dallas: Sizzling Heat to Persist Into Late Week

August 4, 2015; 11:53 AM ET

Sunny skies and very warm conditions will persist through the week in the Dallas-Fort Worth Metroplex. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Wed. Home Energy Efficiency

Wed. Degree Days

Wed. UV Index