Not a drop of rain should fall on MontanaFair Monday but fair goers should keep an eye on conditions Tuesday, a thunderstorm could make an appearance.
The National Weather Service expects highs near 90 and clear skies all day Monday.
Lows will fall to 62 Monday night and skies will remain mostly clear. A slight breeze will blow out of the west.
A 20 percent chance of showers and thunderstorms is expected Tuesday afternoon. Highs should reach to 93, and a south wind will keep things moving at about 10 mph.
The chance for a shower or thunderstorm will increase to 30 percent Tuesday night. Skies will be partly cloudy, lows will drop to 63 and winds will hold steady at 10 mph.