Hawaii County Weather Forecast for October 17 2025 Stay Prepared with the Latest Updates
Hawaii County is preparing for a variety of weather conditions as we move through October 17, 2025. Rain is expected across multiple locations, with varying temperatures and chances of precipitation.
Weather Forecast for October 17, 2025
Hilo
- Tonight: Cloudy with occasional showers. Lows between 66°F and 72°F near the shore, dropping to 52°F to 59°F at 4,000 feet. 90% chance of rain.
- Friday: Cloudy with likely showers. Highs from 80°F to 86°F near the shore, about 68°F at 4,000 feet. 70% chance of rain.
- Friday Night: Continued cloudiness with likely showers in the evening and occasional showers thereafter. Lows similar to tonight. 90% chance of rain.
Kona
- Tonight: Cloudy with isolated showers and haze. Lows around 74°F at the shore, 50°F to 55°F near 5,000 feet. 20% chance of rain.
- Friday: Cloudy, with isolated showers in the morning transitioning to scattered showers in the afternoon. Highs from 84°F to 89°F. 40% chance of rain.
- Friday Night: Cloudy with isolated showers. Lows from 71°F to 76°F. 20% chance of rain.
Waimea
- Tonight: Cloudy with possible evening showers and haze leading to occasional showers after midnight. Lows between 65°F and 74°F near the shore. 90% chance of rain.
- Friday: Breezy, cloudy weather with likely showers. Highs near 82°F at the shore, 70°F to 79°F at 3,000 feet. 70% chance of rain.
- Friday Night: Continued cloudiness with likely showers. Lows similar to tonight. 70% chance of rain.
Kohala
- Tonight: Cloudy with potential evening showers. Similar temperature ranges to Waimea. 90% chance of rain.
- Friday: Breezy and cloudy with likely showers, highs around 82°F. 70% chance of rain.
- Friday Night: Continued cloudiness and likely showers. Similar lows to Waimea. 70% chance of rain.
South Big Island
- Tonight: Cloudy with scattered showers, lows around 76°F. 40% chance of rain.
- Friday: Mostly cloudy and breezy with isolated showers in the morning. Highs around 87°F. 40% chance of rain.
- Friday Night: Cloudy and breezy with isolated evening showers. Lows similar to tonight. 20% chance of rain.
Weather Summary
The weather pattern across Hawaii County will remain somewhat unstable into the weekend, with scattered showers, isolated thunderstorms, and varying temperatures. An upper low near Kauai is influencing conditions, bringing moisture and the potential for heavy rainfall.
Residents and visitors are advised to stay informed about changing weather conditions as they unfold. Various regions may experience heightened shower activity, especially on windward coasts and mountain areas.
Preparedness is key; ensure you have access to the latest updates to navigate the upcoming weather conditions.
