Expect voggy and somewhat humid days and cool nights this weekend.

National Weather Service forecasters say a weather system northwest of the islands is cutting off the normal northeast trade winds.

Light Kona winds from the south are bringing humid Kona weather and vog today and Sunday, forecasters say.

Afternoon clouds may build over central and leeward areas and bring some afternoon showers. But forecasters don’t expect heavy rain because there’s not that much moisture in the air.

The clouds should clear by evening, allowing the heat to dissipate and bringing cool night temperatures in the 60s and 70s.

Trade winds should return sometime on Monday.