AWUS83 KBIS 190936 RWSBIS NDZ001>005-009-010-012-013-017>020-022-023-025-031>033-035>037- 040>044-046>048-050-051-055>062-191745- Regional Weather Forecast National Weather Service Bismarck ND 436 AM CDT Tue May 19 2026 /336 AM MDT Tue May 19 2026/ Expect decreasing clouds throughout the day today with some isolated light rain showers and sprinkles across the central and eastern Dakotas. Highs this afternoon will range from around 50 in the Red River Valley to the lower 60s in eastern Montana. Most of the Dakotas and western Minnesota will see near to below freezing temperatures tonight into early Wednesday morning. Temperatures return closer to normal for the second half of the work week, with highs in the 60s and 70s, lows above freezing, increasing chances for showers and occasional thunderstorms. $$