I live in NE Texas.. Got them planted late.. Last week in April.. Started watering them early.. Using city water.. Water by hand using shower head and spraying water on the ground.. not using spray irrigation above ground.. However, temps in July were several days of 108 - 109.. On these days I watered twice a day and some days 3 times per day... When they bloomed for second go-round I sprayed Epson salt for set..... as I did first time... blooms wilted and basically zero tomatoes for about three weeks now.... Any chance they will produce again or is it over with for this season??
Certified GKH Gardening Expert
You may get some after the temperatures cool down. Even with watering, that temperature is way too high to set fruit. The only thing to do here will be to keep them healthy until the temperatures cool some. You may see some fruit still.
It will be best in the future to get the tomatoes out as soon as you can for the best harvest. This article will give you some good information: https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm