Over the next 10 days Lewistown tops out around 30° (Tuesday) and dips to 8° on the coolest night (Saturday). Models drop roughly 1.2 in of precipitation across the stretch — watch Saturday (67%). Expect a blustery spell — gusts near 30 mph on Tuesday. No watches or warnings are active for the area right now. Right now Lewistown is running about 46° warmer than Butte. Longer view: mountain climate — intense sun, cool nights and snow well beyond 'winter'.
Lewistown, MT · Elev 3,947 ft · 47.06°N, 109.43°W · Montana · Forecast computed for these exact coordinates