Weather forecast for: Island Park ID
Last Update: 12:31 pm MDT Aug 17, 2026
This Afternoon: Partly sunny, with a steady temperature around 73. South southwest wind 7 to 9 mph becoming west northwest. Winds could gust as high as 18 mph.
Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 75. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night: Partly cloudy, with a low around 45. West wind around 5 mph becoming calm in the evening.
Wednesday: Sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night: Mostly clear, with a low around 48.
Thursday: Sunny, with a high near 82.
Thursday Night: Partly cloudy, with a low around 51.
Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.
Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Saturday: A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Sunday: A 30 percent chance of rain and thunderstorms. Mostly sunny, with a high near 75.
WeatherWorld.com
