Montana, Idaho Forest Fires Relentlessly Grow Larger The smoke continues to pour into the Bitterroot Valley and other areas of western Montana as a month of above average temperatures wraps up. And all major fires that started this month continue to get a little bigger each day. But weather forecasters are expecting a couple of days of rain showers Sunday and Monday. It's a "good news-bad news" forecast - yes, there will be some rain, but there may be some lightning, too. There's the possibility of lightning starting more forest fires. Rain showers, clouds and a bit of wind might help our breathing. Air quality at the Hamilton gauge is slipping back and forth between "Unhealthy" and "Unhealthy for Sensitive Groups." And, of course, some of the smoke is coming from fires throughout the Northwest. We have lots going on this weekend in Hamilton, but limit your outdoor activities.