Below is info from National Weather Service @ GSP:
MAY 2ND 90F IN 1959 FORECAST 90F
MAY 3RD 91F IN 1959 FORECAST 90F
MAY 2ND 91F IN 1959 FORECAST 88F
MAY 3RD 94F IN 1902 FORECAST 91F
MAY 2ND 88F IN 1935 FORECAST 85F
MAY 3RD 85F IN 1965 FORECAST 86F
So, by looking at the data above... you know the theme of our forecast for this week.... HOT! Tomorrow we'll likely stay below record temp levels as scattered storms develop, mainly in the mountains, and high pressure will still be in the process of grabbing hold of our weather! However, high pressure will be dominant by mid-week. Wednesday into Thursday the rain chance will be less than 10% and the heat will crank up! An upper level ridge will build, which means that the jet stream will retreat northward. That will take all of the active/stormy weather with it, and also the cooler air will get shoved back into Canada! Heat and humidity will be at mid-summer levels, with highs reaching the mid 80s in the mountains and low 90s for the Upstate. Heat index values could reach the mid to upper 90s.
There's little relief in the short-term, as we'll stay very warm through the weekend, but a front will make a run at the Carolinas early next week! This should help to drop temps a little, and bring in some much needed rain. We are behind by 4 inches for the year so far at GSP, so we need some good, soaking systems! Nothing like that is on tap through the weekend, and we'll hope for some decent rain totals out of the next storm system early next week.