• Today

    May 21

    85°Lo 62°

    A few t-storms, some severe

    Poor for home energy
    • Avg
      RealFeel
      82°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      9 mph
  • Wed

    May 22

    86°Lo 64°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      5 mph
    more
  • Thu

    May 23

    88°Lo 67°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      81°
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      6 mph
    more
  • Fri

    May 24

    83°Lo 65°

    A thunderstorm possible

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      85°
    • Wind
      Speed
      10 mph
    more
  • Sat

    May 25

    85°Lo 64°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      77°
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      9 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Cloudy
Cloudy
T-storms
T-storms
T-storms
Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 80° 80° 78° 78° 77° 81° 85° 84°
RealFeel® 82° 82° 80° 83° 85° 89° 90° 86°
Humidity 70% 69% 79% 85% 94% 78% 64% 61%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
43%
 
47%
 
51%
 
54%
 
54%
 
49%
 
34%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 11 S 11 S 10 S 9 S 8 S 7 SSW 7 SSW 6 SSW
UV Index 2 3 4 4 4 3 2 1
Cloud Cover 100% 97% 90% 91% 91% 90% 85% 81%
Dew Point 70° 69° 71° 74° 76° 74° 71° 69°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 85° 80° N/A 89°
Low 62° 62° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 14:00 of sunlight, then sets at 8:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:48 PM with 11:30 of moolight, then sets at 4:18 AM

Top Story

McKinney Weather Report

Dallas to Memphis at Greatest Risk for Tornadoes Tuesday

May 21, 2013; 11:49 AM ET

Severe storms, some capable of producing tornadoes, will threaten communities across northern and eastern Texas, southeastern Oklahoma, northwestern Louisiana and Arkansas on Tuesday. more >

DIY Deodorant and Lotion

May 17, 2013; 5:00 AM ET Learn how to save money by making your own deodorants and lotions with all-natural ingredients.

Tue. Home Energy Efficiency

Tue. Degree Days

Tue. UV Index