From Sean Bellafiore:
Wednesday is the middle of the work week and is also the transition point between the rainy weather from Monday and Tuesday and the forthcoming hot weather Thursday and Friday. Today's weather will be fantastic as highs climb into the upper 70s and lower 80s with mostly sunny skies. Overnight tonight, southerly winds return and will draw up a modest amount of humidity Thursday morning. Lows Thursday fall into the upper 50s and lower 60s.
High temperatures Thursday climb into the upper 80s and lower 90s with mostly sunny skies and strong southerly winds between 20 and 30 miles per hour. Afternoon dew points will likely climb into the middle 60s, making humidity noticeable, but not uncomfortable. Uncomfortable humidity is back Friday morning as low temperatures only fall into the lower and middle 70s with dew points in the low 70s.
Humid conditions will remain in place Friday and Saturday as high temperatures both days climb into the lower and middle 90s with partly to mostly cloudy skies. Dew points will be in the low to middle 70s as well, sending heat index values close to 100° during the mid and late afternoon hours. The dry line may move eastward both days to near Highway 281. As a result, counties west of Highway 281 may see high temperatures closer to 100° with noticeable lower humidity.
The dry line will not spark thunderstorms Friday and will likely not spark storms Saturday either. Thunderstorms may form Saturday night into Sunday morning as our next cold front gets closer to our area. The cold front will likely move into Central Texas sometime Sunday, bringing a 40% chance of scattered showers and thunderstorms. The front will likely push through our area before stalling to our south. Much like last weekend, if the front stalls over our area, rain chances will remain in the forecast Monday and Tuesday. As of now, Memorial Day Monday and Tuesday have rain chances at 30% due to uncertainty of where the cold front will stall.