Kauai weather forecast for today points to sunny and breezy conditions on Saturday, with highs of 87 to 92 near the shore and lower temperatures inland. Rest Of Tonight stays mostly clear and breezy, with lows around 76 near the shore to around 67 above 3000 feet.
Saturday on Kauai
Saturday brings east winds of 10 to 20 mph, while Saturday Night stays mostly clear with east winds of 10 to 15 mph decreasing to up to 15 mph after midnight. The shoreline is the warmest part of the island in this forecast, while higher elevations stay cooler, with Saturday highs around 78 above 3000 feet.
Norbert and the weekend trend
Issued at 319 PM HST Fri Sep 18 2026, the forecast says shower activity should decrease this weekend as the surface trough associated with the remnants of Tropical Cyclone Norbert moves westward and exits the vicinity of the state tonight. Moderate to locally breezy trade winds will continue through Monday, then gradually decline by midweek before another round of enhanced moisture arrives by next Tuesday.
Shower blocks for Kauai
The main forecast for the island says isolated to scattered showers can still reach some areas, even as the overall trend turns drier. One block calls for breezy conditions, partly cloudy skies, isolated showers, lows of 73 to 79, northeast winds of 15 to 20 mph, and a 20 percent chance of rain; another Saturday block calls for breezy, mostly sunny conditions, isolated showers, highs of 81 to 90, and the same 20 percent chance of rain.
That split is the practical detail readers need today: one part of Kauai is headed for stronger sunshine and warmer shoreline temperatures, while other forecast blocks still keep showers in play for windward and mauka areas, valleys, and elevations above 4000 feet. For people planning outdoor time, the safest reading is simple — expect a sunnier, breezier Saturday near the shore, but keep an eye on the scattered shower forecasts if your day takes you inland or upslope.
