The upper-level ridge or area of high pressure that has been planted over the ArkLaTex for most of the week will finally move east. With the upper-level ridge shifting east, a trough will develop over Texas and a cold front will drop far enough south to increase our rain chances this weekend.
Clouds will be on the increase across the ArkLaTex tonight. A stray shower or 2 is possible across east Texas. Lows will be in the low to mid 70s.
Overall, Friday will be another hot and humid day. Highs will be in the low 90s, with heat indices near 100 degrees. Showers and storms will be start to develop shortly after noon on Friday. By Friday afternoon, isolated to scattered showers and storms will be possible. The coverage of rain on Friday will be a little bit more widespread than the last couple of days. There is the potential a few showers and storms could linger into the evening and overnight. A few high school football games could be impacted by rain. Temperatures will be in the low to mid 80s by kickoff and in the upper 70s to near 80 degrees by the end of the game.
If you have outdoor plans this weekend, now is the time to start thinking of a backup plan. Saturday and Sunday will feature some wet weather. Rain and a few storms will be likely on Saturday and scattered to widely scattered showers and storms will be possible on Sunday. The heaviest rain this weekend will likely fall across parts of E TX, SE OK and SW AR. This weekend won’t be a complete washout for everyone, though. It’s not going to be raining everywhere all day long on Saturday or Sunday. Because of the clouds and rain, highs will be in the 80s. A few places could struggle to hit 80 degrees. The first day of fall is Saturday and temperatures could be cooler than average.
Decent rain chances and near or below average temperatures will linger into next week. Isolated to scattered showers and storms will be possible through mid week. Highs will be in the mid to upper 80s and lows will be in the low to mid 70s. There is still the potential our first cool blast this fall could arrive towards the middle or end of next week. This cold front could bring in more rain and much cooler air. Highs could be near 80 degrees and lows could be near 60 degrees by the end of next week.
Stay cool and have a good night!
KSLA First Alert Chief Meteorologist Jeff Castle