National Weather Service United States Department of Commerce

Hotter weather is in store today as an upper level high pressure ridge builds in from the west. Rain chances will be confined to the southeast counties and mainly this afternoon. A weak front will do little but bring slightly drier air north of the I-20 corridor.
Warm and humid conditions are expected overnight with lows in the mid 70s to around 80. Thunderstorms may develop late along a stationary front as an upper level disturbance moves over the area, a few of which could be strong and contain gusty winds and frequent lightning.
The heat will really turn on Friday afternoon, with highs in the mid- upper 90s east, 99-102 degrees west. The humidity will result in heat index values (what it feels like) anywhere from 99 to 108 degrees. Isolated thunderstorms may occur near the immediate Red River Valley, but will do little to quell the heat. Remember to to stay hydrated and limit your time outdoors and exposure to the heat!
The heat will continue on Saturday with highs in the mid-upper 90s east, 99-105 degrees west. The humidity will result in heat index values (what it feels like) anywhere from 100 to 108 degrees. Remember , prolonged activity in this excessive heat can lead to heat exhaustion and heat stroke. Avoid outdoor activity during the heat of the day. If you must participate in outdoor activity, drink plenty of water and take plenty of breaks in shaded and/or air conditioned areas.
Hot days coming up... Be sure to know the terminology and don't forget these heat safety rules. For additional information check out this heat safety website: www.weather.gov/heat
Scattered thunderstorms will develop near a stationary front late Saturday afternoon and possibly form into a storm complex Saturday night. This complex would move southeast and could bring a few strong to severe storms to those parts of North Texas north of Interstates 20/30 overnight. The highest coverage of storms is expected to remain north across Oklahoma. Primary hazards are expected to be very gusty downburst winds, hail, and frequent lightning.

 
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Waco - Earliest and Latest 100° Days        Click Here for DFW

 

Average Date of...
  • First 100° Day - July 4
  • Last 100° Day - August 29

 

Earliest First Occurrence
Rank Date Temperature
1 Mar 28, 1971 100
2 Apr 9, 1963 101
3 Apr 11, 1907 100
4 May 4, 1984 100
5 May 5, 1906 100
6 May 27, 1928 100
7 May 28, 2011 100
8 May 30, 1985 100
9
(tie)
May 31, 1998 101
May 31, 1911 100

 

Latest Last Occurrence
Rank Date Temperature
1 Oct 4, 1983 100
2 Oct 3, 1979 100
3
(tie)
Oct 2, 1989 101
Oct 2, 1938 100
5 Oct 1, 1977 100
6 Sep 29, 2011 101
7
(tie)
Sep 28, 2005 103
Sep 28, 1953 102
9 Sep 21, 1933 101
10
(tie)
Sep 20, 1954 100
Sep 20, 1911 100

 

Latest First Occurrence
Rank Date Temperature
1
(tie)
1920 none
1919 none
3 Oct 3, 1979 101
4 Aug 27, 1938 100
5 Aug 20, 1973 100
6 Aug 17, 1941 101
7 Aug 12, 2007 101
8 Aug 10, 1968 100
9 Aug 8, 1942 100
10
(tie)
Aug 7, 1959 100
Aug 7, 1955 100
Earliest Last Occurrence
Rank Date Temperature
1 Jul 8, 1931 104
2
(tie)
Jul 22, 1906 104
Jul 22, 1971 103
4 Jul 29, 1960 101
5
(tie)
Aug 4, 1961 100
Aug 4, 1914 100
7
(tie)
Aug 5, 2004 101
Aug 5, 1991 100
9
(tie)
Aug 7, 1915 102
Aug 7, 1996 100