Drovers Newsletter has a timely article this week on cattle heat stress and when it is too hot to work cattle, and especially calves, which are more susceptible to stress than full-grown animals. You can find it here along with links to sources of cattle heat stress maps (or go directly to the Cattle Comfort maps at https://cattlecomfort.mesonet.us/). Remember that you can also subscribe to get email notices of heat stress from the Southeast Regional Climate Hub at https://www.serch.us/lights/cattle-heat-stress/.