Here in Illinois we are having a nasty heatwave like the rest of the country. I posted a few days ago that my colony went queenless but I found a queen cell in the upper brood box. My bees were very aggressive last time I checked them about 4 days ago. Yesterday I walked by the hive and was chased off twice by guard bees. Does the combination of being queenless and the severe heat make them act like this? We haven't had much rain in the past 3 weeks so I am guessing there isn't much of a nectar flow right now. Would it be wise to feed them until we get some rain? There are tons of flowers in my area but I know the flow dries up with no rain. My bees were very docile but now they have turned into little monsters. Any suggestions?