Hawaiʻi DOH says PFAS were detected at the Haleakalā Park Rain Shed Chlorinator on Maui. Officials are reviewing test results and will post follow-up guidance if needed.

Breezy northeast trades bring gusty afternoons and spotty windward showers. Small boats: advisory in place through Tuesday morning.

Scattered windward showers today with highs near 82°F. Northeast trades strengthen through next week with gusts near 30 mph and marine caution advised.

Muggy Wednesday with spotty afternoon showers and highs near 84°F.

Muggy mornings and highs near 84°F in Honolulu through midweek. Spotty afternoon showers are likely; a northwest swell may boost north/west surf midweek.

Breezy east‑northeast trades will keep pop‑up morning showers over windward Oʻahu; highs near 83°F and gusts to about 25 mph.

University of Hawaiʻi researchers are running 98 grant‑funded projects totaling more than $33.5M to tackle invasive mosquitoes, ants, beetles and plants across the islands. The portfolio mixes federal and non‑federal awards and funds both field work and new detection tools.

Scattered showers and gusty east-northeast trades today in Honolulu; highs near 83°F and brief wet spots expected.

Gusty east-northeast trades will keep highs near 83°F with scattered, brief windward showers through Monday.

Breezy east-northeast trades will bring scattered windward showers and gusts to Honolulu today; small craft advisories are in effect into the evening.

A compact UH Mānoa ocean model is forecasting a strong El Niño by late 2026, raising concerns about global weather shifts and increased stress for Hawaii's reefs and water supplies.

State health officials warned Hilo Bay and the Hāmākua Coast are under a brown water advisory after storms. Avoid brown or murky water until testing clears it.

Breezy east‑northeast trades will keep scattered showers moving through Honolulu. Gusts near 30 mph and a Small Craft Advisory affect some channels through Friday.