SXUS43 KBIS 192130 RECBIS NDZ001>005-009-010-012-013-017>020-022-023-025-031>033-035>037- 040>044-046>048-050-051-055>062-201200- Recreational Forecast National Weather Service Bismarck ND 430 PM CDT Tue May 19 2026 For Western Lake Sakakawea... .TONIGHT...Southeast winds 10 to 20 mph. Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Breezy. South winds 15 to 25 mph. Partly sunny. Highs in the lower 70s. For Eastern Lake Sakakawea... .TONIGHT...South winds 10 to 20 mph. Mostly clear. Lows in the mid 30s. .WEDNESDAY...Windy. South winds 20 to 30 mph. Mostly sunny. Highs in the lower 70s. For Northern Lake Oahe... .TONIGHT...North winds around 10 mph shifting to the southeast in the late evening and overnight. Areas of frost after midnight. Mostly clear. Lows in the mid 30s. .WEDNESDAY...Windy. South winds 10 to 20 mph increasing to 20 to 30 mph in the late morning and afternoon. Sunny. Highs in the upper 60s. $$