| NWS Forecast for: Centennial Mountains/Island Park Issued by: National Weather Service Pocatello, ID Last Update: 417 AM MDT Fri May 22 2026 | |
| Today: Mostly sunny. Highs 57 to 65. Tonight: Mostly cloudy with isolated rain showers in the evening...then partly cloudy after midnight. Lows 32 to 42. Saturday: Mostly sunny. Warmer. Highs 65 to 73. Saturday Night: Partly cloudy. Lows 38 to 48. Sunday: Mostly sunny. Highs 70 to 79. Sunday Night: Partly cloudy. Lows 40 to 50. Memorial Day: Sunny. Highs 72 to 80. Monday Night: Partly cloudy. Lows 40 to 49. Tuesday: Mostly sunny with a slight chance of showers and thunderstorms. Highs 62 to 71. Tuesday Night: Mostly cloudy with a chance of rain. Lows 34 to 41. Wednesday: Mostly sunny with a chance of rain showers, a slight chance of thunderstorms and snow. Highs 57 to 64. Wednesday Night: Partly cloudy with a slight chance of rain. Lows 33 to 41. Thursday: Mostly sunny with a slight chance of showers and thunderstorms. Highs 59 to 66. | |
| Zone Forecast: Centennial Mountains/Island Park | |
Visit your local NWS office at: https://www.weather.gov/pih |