An already hot and humid summer is expected to worsen by degrees Sunday as the remnants of tropical cyclone Ela start to move across the state.

According to forecasts by the National Weather Service, conditions will become increasingly humid, with the possibility of heavy showers.

As of Saturday evening, the remnant low-pressure system that was Ela was about 200 miles northeast of Maui. Shallow-level moisture associated with the system continues to affect mainly Kauai and Oahu.

On Friday, the Department of Land and Natural Resources closed the Kalalau Trail on Kauai due to heavy rain in the area. The trail was reopened Saturday after the water level at Hanakapiai Stream was determined to have returned to normal.

The approaching low-pressure system disrupted tradewinds on Saturday, leading to hot, muggy conditions around the state.

Honolulu Airport recorded a state-high 90 degrees on Saturday.

Temperatures reached 87 degrees in Hilo, tying the record for the date set in 1974.

This follows a run of record-high temperatures for East Hawaii.

On July 3, temperatures in Hilo reached 87 degrees, matching the highest ever for that date. A day later, temperatures in Hilo reached 88 degrees, breaking the previous record by a degree.

Temperatures continued to tie records on July 5 and 7.

The weather service predicts temperatures near 90 degrees and dew points (the temperature at which water vapor condenses into liquid) in the mid-70s on Sunday. Heat indexes are expected to approach 100 degrees, meaning the humidity will make the temperature feel equivalent to 100 degrees.

Locally breezy trades are expected to return early this week, with showers focused on windward and mountain areas.