 This forecast is brought to you by Montana Internet Fiber. Voted best internet provider in Helena and the official internet service provider of the Montana Radio Company. Visit MT.net. For the late night period, mostly cloudy. Risk for a shower or thundershower. Lows near 60. Thursday, mostly cloudy and cooler. Chance for a shower or thundershower. Turning breezy. Highs near 75. Friday, more clouds than sun. Breezy and cool with high temperatures in the upper 60s. This is Montana Radio meteorologist Steve Adamson.