Its possible to happen by next month we are almost in 250$ price of eth as of today . If they break 250 price before the end of the month then 300$ will be the next target that possibly happen next month , we just need to wait and see .
I don't see that happening next month since ETH has been staying less than $250 this past 2 months and if you look at the price history, they just followed Bitcoins movement. Unless Bitcoin were to pump next month, then we'll still be seeing below $300 in the future. Ethereum 2.0 is still faraway which is very anticipated by a lot of people which might be the way to $300.