| NWS Forecast for: Upper Treasure Valley Issued by: National Weather Service Boise, ID Last Update: 207 PM MST Mon Jan 12 2026 |  |
Tonight: Mostly clear. Patchy fog after midnight. Lows 22 to 28. Light winds. Tuesday: Areas of fog in the morning. Mostly sunny. Highs 41 to 46. Light winds. Tuesday Night: Partly cloudy. Areas of fog after midnight. Lows 21 to 27. Light winds. Wednesday: Areas of fog in the morning. Sunny. Highs 42 to 47. Light winds. Wednesday Night: Mostly clear. Areas of fog after midnight. Lows 20 to 25. Light winds. Thursday: Areas of fog in the morning. Sunny. Highs 39 to 44. Thursday Night And Friday: Mostly clear. Patchy fog through the day. Lows 19 to 25. Highs 40 to 45. Friday Night Through Martin Luther King Jr Day: Mostly clear. Lows 20 to 27. Highs 41 to 48. | |
| Zone Forecast: Upper Treasure Valley | |
Visit your local NWS office at: https://www.weather.gov/boi |