From the KX News Dakota Storm Center:
A low pressure system continues to develop on the lee side of the Rockies, north of Montana. This system will strengthen through Friday, before a cold front moves through the Dakotas this weekend. Daily rain chances will be low with continued warm temperatures until this front pushes through our area. Showers & thunderstorms will be hit & miss Thursday night, Friday night & Saturday for Western & parts of Central North Dakota with strong winds out of the South & Southeast as a ridge of high pressure slides east, giving way to the developing system that will slowly move into our region. This weekend will bring more clouds and rising rain chances with the approach of a cold front (Saturday). Saturday night through Monday will bring a good chance for rain & thunderstorms with a passing front that will stall out over the Midwest during the beginning of the work week. After this front moves through, temperatures will fall considerably. Highs will be in the 60s & 70s with off/on, daily rain chances and in & out clouds.
Tonight will bring mostly clear skies with continued moderate to strong winds. There will be a slight chance for hit & miss rain/storms. Lows will be in the 60s with a few 50s and a SE wind 15-25mph G35.
Friday starts off with mostly sunny skies and low rain chances. It will be warm & windy with in & out clouds. Highs in the 80s with a South wind 20-30mph G40.
Friday night, breezy conditions will continue with fair to partly cloudy skies. Winds will start to calm down a bit after Midnight with a slight chance for isolated rain. Lows in the 60s with a SE wind 15-25mph G30.
Saturday will bring a mixture of sunshine & cloud cover with more clouds rolling in, late. Highs in the 80s with a West/North wind 10-20mph.
Saturday night expect increasing clouds followed by rising rain chances, late. Lows on either side of 60 with calming winds early. 30% chance for rain & a North wind 2-12mph, becoming light for some.