A high pressure system north of the main Hawaiian Islands is keeping trade winds light through tonight, the National Weather Service said, with most showers coming over windward and mauka areas.

Today: Mostly sunny with isolated showers. Highs 81 to 87. East winds 10 to 15 mph. Chance of rain 20 percent.

Tonight: Partly cloudy. Isolated showers in the evening. Lows 67 to 74. East winds 10 to 15 mph. Chance of rain 20 percent.

Wednesday: Sunny with isolated showers in the morning: then partly sunny in the afternoon. Haze in the afternoon. Highs 80 to 85. South winds around 10 mph. Chance of rain 20 percent.

Wednesday Night: Mostly clear. Haze. Lows 66 to 73. South winds around 10 mph early in the evening becoming light.

Thursday: Mostly sunny with isolated showers. Haze. Highs 81 to 86. Light winds becoming south around 10 mph in the late morning and afternoon. Chance of rain 20 percent.

Thursday Night: Mostly clear. Haze through the night. Lows 65 to 72. East winds around 10 mph.

Friday: Sunny. Isolated showers in the afternoon. Highs 80 to 85. South winds around 10 mph. Chance of rain 20 percent.

Friday Night: Mostly clear with isolated showers. Lows 66 to 73. Northeast winds around 10 mph. Chance of rain 20 percent.

Saturday: Sunny. Isolated showers in the afternoon. Highs 80 to 85. East winds 10 to 15 mph. Chance of rain 20 percent.

Saturday Night: Mostly clear with isolated showers. Lows 66 to 73. Northeast winds 10 to 15 mph. Chance of rain 20 percent.

Sunday: Sunny. Isolated showers in the afternoon. Highs 80 to 85. East winds 10 to 15 mph. Chance of rain 20 percent.

Sunday Night: Mostly clear with isolated showers. Lows 66 to 73. Northeast winds 10 to 15 mph. Chance of rain 20 percent.

Memorial Day: Sunny. Isolated showers in the afternoon. Highs 80 to 85. East winds 10 to 15 mph. Chance of rain 20 percent.