Hilo, Hawaii – Hawaii wakes up under pounding rain, slick pavement, and fast-rising streams as water pools across windward roads before sunrise. The ground is already saturated, and runoff is moving quickly, especially in low-lying neighborhoods.
According to the National Weather Service in Honolulu, a Flood Watch remains in effect for all Hawaiian Islands through Monday afternoon, with the highest risk focused on windward and mauka areas. On the Big Island, a Flood Advisory is active for Hawaii County through 3 a.m., as radar shows steady to locally heavy rain continuing to train ashore.
On the east side of the island, rain rates near one inch per hour have been observed from Hilo to Puna. Areas including Hilo, Pahoa, Keaau, Mountain View, Honokaa, and Volcano are seeing water cover roads, poor drainage spots, and small streams. Drivers may encounter standing water along Route 11 and Route 130, especially during heavier bursts.
A stalled front near Maui County is feeding deep tropical moisture into the state. That setup keeps showers persistent rather than brief. The greatest flooding risk remains inland and windward, where runoff accelerates quickly after repeated downpours. Urban flooding is also possible where drains clog with debris.
Travel may slow at times today and again Monday. Residents should avoid streams and drainage ditches, charge devices, and allow extra drive time. Conditions can change quickly when showers intensify.
Looking ahead, rain chances stay elevated into Tuesday before a gradual drying trend develops midweek. Longer-range signals point to warmer, more stable conditions late next week, offering a break after several soggy days. Are you seeing flooded roads where you live? Share what conditions look like near you.
Five-Day Outlook for Hilo, Hawaii
- Today: Heavy rain likely, highs near 74°F, flooding possible
- Monday: Periods of heavy rain, highs near 74°F
- Tuesday: Scattered showers, highs around 76°F
- Wednesday: Passing showers, partial breaks, highs near 75°F
- Thursday: Isolated showers, warmer feel, highs near 76°F
