Nearly a third of flights out of Boston Logan Airport were delayed Thursday due to thunderstorms and construction.

By 3:30 p.m., 30% of departing flights had been delayed, and 10% of the day’s flights had been cancelled, according to a flight-tracking website .

Massport warned travelers of ongoing flight delays shortly before 9 a.m. on Thursday, citing weather and airfield construction. It advised passengers to check the status of their flight online at https://bit.ly/3EgFqID .

Read more: Closed runway at Boston Logan Airport could cause flight delays over the next 2 months

Massachusetts could get up to 3 inches of rain on Thursday amid widespread showers and a chance of thunderstorms, National Weather Service forecasters predicted.

Massport previously warned travelers that a

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