 This forecast is brought to you by Montana Outdoor Sports. Ravs, kayaks, and fun on the water. Follow your dreams, discover your nature at Montana Outdoor Sports. For the late night period, mostly clear skies, lows near 55. Sunday, increasing clouds, chance of a shower, thundershowers. The afternoon wears on, highs in the upper 70s. Risk for an evening shower or thundershower Sunday night, then clearing, lows near 55. Mixed sun and clouds on Monday, breezy highs in the upper 70s. This is Montana Radio meteorologist Steve Adamson.