Weather
Forecast
Still outside the 2-week forecast window. Below is what early-to-mid August typically looks like at each location — real forecasts switch on automatically as we get closer.
Big Sky & Bozeman
August 7–10
Friday · Aug 7
Arrival + Ease In
Day
75°
Night
42°
Warm days, crisp nights, occasional afternoon storms.
Historical average
Saturday · Aug 8
Choose Your Own Adventure
Day
75°
Night
42°
Warm days, crisp nights, occasional afternoon storms.
Historical average
Sunday · Aug 9
Whitewater Rafting Day
Day
75°
Night
42°
Warm days, crisp nights, occasional afternoon storms.
Historical average
Monday · Aug 10
Big Sky → Bozeman → Helena
Day
75°
Night
42°
Warm days, crisp nights, occasional afternoon storms.
Historical average
Orofino
August 10–14
Tuesday · Aug 11
Fly Fishing + Field Day
Day
84°
Night
53°
Hot, mostly dry, with occasional pop-up thunderstorms.
Historical average
Wednesday · Aug 12
Day on the Lake
Day
84°
Night
53°
Hot, mostly dry, with occasional pop-up thunderstorms.
Historical average
Thursday · Aug 13
Town, Trails and (possibly) Guns
Day
84°
Night
53°
Hot, mostly dry, with occasional pop-up thunderstorms.
Historical average
Friday · Aug 14
Soft Landing + Departure
Day
84°
Night
53°
Hot, mostly dry, with occasional pop-up thunderstorms.
Historical average
Packing translation
- Big Sky sits at ~7,500 ft — even with warm days, evenings drop into the 40s. A real layer (fleece or shell) is non-optional.
- Helena / Orofino is hot and dry by day, cool at night. Sunscreen, a hat, and something light for evenings on the firepit.
- Afternoon thunderstorms happen. A small rain layer in your day pack pays for itself.
Live forecasts via Open-Meteo. Historical averages from NOAA 1991–2020 climate normals.