Heat continues toward a peak on Memorial Day, when highs reach the upper 90s

In brief: After a few mostly cloudy days we’ll see increasingly clear skies and this will help temperatures march upwards. We’ll go from highs in the low-90s today, to mid-90s this weekend to upper-90s by Memorial Day. After that a weak front will provide some modest relief.

Thursday

After a cloudy start we should see partly sunny skies this afternoon, and this should help to push high temperatures into the low-90s. Winds will blow from the south at 10 to 15 mph, with occasionally higher gusts. Once again, we should see some fairly strong storms develop in central Texas to the north of Austin. While these will propagate eastward, I expect them to remain north of Highway 105 once again, with no impact on the greater Houston metro area. Low temperatures tonight will only drop into the upper 70s.

Friday

A day very similar to Thursday, although high temperatures are likely to be a degree or two higher.

Saturday and Sunday

We’ll see mostly sunny skies this weekend, with high temperatures solidly in the mid-90s. We will be hitting our first highs above 95 degrees nearly three weeks earlier than normal, in case you were wondering whether this is typical weather for late May. It’s not. Nighttime lows remain sultry, around 80 degrees.

Memorial Day

Everything comes together on Monday, sunny skies and the characteristic jump in temperatures associated with an approaching front, to push our highs into the upper 90s. If we look at wet bulb globe temperatures—a measure of heat stress in direct sunlight that takes into account air temperature, humidity, wind speed, sun angle, and cloud cover—we see the potential for an ‘extreme’ day in terms of heat. Please bear this in mind if you have outdoor activities planned.

Tuesday and beyond

We’ll see a slight chance of rain on Monday evening as the front approaches and moves through, but for now I don’t expect anything more than a dusting of showers. Highs next week look more reasonable, in the low 90s, with overnight lows perhaps in the mid-70s. We’ll also see some daily rain chances in the Wednesday through Saturday period, although they may be of the 20 percent daily variety. I’m not sure yet. In any case, the very end of May should see a bit of a return to normalcy.