Heavy rain bands are moving across Oʻahu this morning, with rates hitting 1 to 2 inches per hour in the worst spots. A Flash Flood Watch is in effect through 6 PM today.

Showers will continue through much of the afternoon as the system moves slowly eastward. Avoid driving through flooded areas and watch for reduced visibility in heavy downpours. By Friday conditions improve significantly—showers drop to scattered, isolated afternoon ones mainly on the neighbor islands. Humidity stays high through Friday but normalizes by Saturday.

Plan indoor activities or windward drives for Friday when the heavy rain moves out.

Heavy rain bands are moving slowly eastward this morning, with rates reaching 1–2 inches per hour in the worst spots on Kauai and Oahu. Maui sees scattered showers mainly in the afternoon.

By Friday, showers become isolated and drop to the Big Island and Maui. Humidity stays elevated through Friday, then drops by Saturday. Moderate trade winds return over the weekend. Surf stays below warning levels—south-facing shores will see a few feet of swell through next week, while north and west shores remain modest. A larger swell may arrive around Tuesday.

If you're planning an afternoon outing, check conditions on the windward side before heading out—isolated showers are possible there.

Heavy rain is moving slowly eastward across Kauai and Oahu this morning, with rates hitting 1–2 inches per hour in the worst spots. On the Big Island, expect scattered showers and isolated afternoon downpours.

By Friday, showers ease to scattered and isolated. Moderate trade winds return over the weekend. Humidity stays elevated through Friday, then drops to normal by Saturday. Surf stays below warning levels—south-facing shores will see a few feet of swell through next week, with a larger swell possible around Tuesday.

Plan outdoor activities for the morning when rain is lighter, and check conditions before heading out in the afternoon.

Heavy rain bands are pushing slowly eastward across Kauaʻi this morning, with rates hitting 1–2 inches per hour in the heaviest spots. A Flash Flood Watch is in effect through 6 PM today.

The flooding threat will ease by late morning as drier air moves in. Visibility drops in heavy showers, so drive carefully if you're out. By Friday, showers drop to scattered and isolated afternoon downpours. Weekend brings moderate trade winds and typical summer conditions back.

Plan outdoor activities for late morning onward, once the heavy rain clears Kauaʻi.