AWUS83 KBIS 221908 RWSBIS NDZ001>005-009-010-012-013-017>020-022-023-025-031>033-035>037- 040>044-046>048-050-051-055>062-230315- North Dakota State Weather Summary National Weather Service Bismarck ND 208 PM CDT Sat Aug 22 2026 /108 PM MDT Sat Aug 22 2026/ Periodic low to medium chances for showers and thunderstorms return to the state late tonight through Monday. A few storms may be strong to severe in southwest and south central North Dakota during the day Sunday, far western North Dakota Sunday night, and central and eastern North Dakota on Monday. Temperatures are favored to remain near to slightly above average through next week, with highs mostly in the 80s. The Detailed Forecast for North Dakota... .TONIGHT...Partly cloudy. Slight chance of showers and thunderstorms after midnight far southwest. Lows ranging from around 50 northeast to the lower 60s southwest. .SUNDAY...Partly sunny with a chance of showers and thunderstorms west and central. Highs in the 80s to lower 90s. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s to lower 60s. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms north central and east. Highs in the 80s. $$