Your Boston Fern (Nephrolepis exaltata)
looks fine to me. The growth habit of your plant seems to be leaning/favoring one side so perhaps rotating it towards the bright light on occasion is needed for more uniform growth. Temperature levels of @30ºC/86ºF sounds perfect if the air circulation and humidity levels are sufficient. The Boston Fern thrives with high humidity of around 80% so you might want to mist occasionally to raise the humidity around the plant but it's very important to have good air circulation also, especially when it's hot and humid. Outside, this plant prefers a shady situation but when grown indoors they require bright, filtered light so if you can place it as close to a window as possible without it getting sunburned, it should do well. The Boston Fern is more drought tolerant than other ferns so make sure the soil is damp but not soggy.