| NWS Forecast for: Boise Mountains Issued by: National Weather Service Boise, ID Last Update: 230 AM MDT Sun Sep 13 2026 |  |
| Today: Patchy fog this morning. Sunny. Much cooler with highs 53 to 68. Tonight: Mostly clear. Areas of fog after midnight. Colder with lows 27 to 42. Breezy. Monday: Areas of fog in the morning. Sunny. Highs 56 to 71. Monday Night: Clear. Patchy fog after midnight. Lows 28 to 43. Tuesday: Patchy fog in the morning. Sunny. Highs 62 to 77. Tuesday Night And Wednesday: Mostly clear. Lows 32 to 47. Highs 63 to 78. Wednesday Night: Partly cloudy. A slight chance of rain showers after midnight. Chance of rain 20 percent. Lows 32 to 47. Thursday: Partly cloudy. A chance of rain showers, mainly in the afternoon. Chance of rain 30 percent. Highs 65 to 79. Thursday Night: Partly cloudy. A slight chance of rain showers after midnight. Chance of rain 20 percent. Lows 34 to 49. Friday Through Saturday: Mostly clear. Highs 70 to 85. Lows 35 to 50. | |
| Zone Forecast: Boise Mountains | |
Visit your local NWS office at: https://www.weather.gov/boi |