| NWS Forecast for: Boise Mountains Issued by: National Weather Service Boise, ID Last Update: 230 PM MDT Sat Aug 29 2026 |  |
| Tonight: Partly cloudy. Isolated rain showers this evening. Patchy fog after midnight. Chance of rain 20 percent. Colder with lows 36 to 49. Sunday: Areas of fog with patchy smoke in the morning. Sunny. Highs 64 to 78. Sunday Night: Decreasing clouds. Lows 33 to 48. Monday: Sunny, warmer with highs 74 to 89. Monday Night: Mostly clear. Lows 41 to 56. Tuesday: Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Chance of rain 50 percent. Highs 73 to 87. Tuesday Night: Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Chance of rain 30 percent. Lows 39 to 54. Wednesday: Partly cloudy. A slight chance of rain showers in the morning. Chance of rain 20 percent. Highs 65 to 79. Wednesday Night And Thursday: Mostly cloudy. A 30 percent chance of rain showers. Lows 37 to 52. Highs 62 to 77. Thursday Night And Friday: Partly cloudy. A 20 percent chance of rain showers. Areas of fog through the day. Lows 34 to 49. Highs 65 to 79. Friday Night: Partly cloudy. A slight chance of rain showers after midnight. Patchy fog after midnight. Chance of rain 20 percent. Lows 35 to 50. Saturday: Mostly sunny. Areas of fog in the morning. A chance of rain showers, mainly in the afternoon. Chance of rain 30 percent. Highs 67 to 81. | |
| Zone Forecast: Boise Mountains | |
Visit your local NWS office at: https://www.weather.gov/boi |