Mandan Lake Weather Forecast
- 48
- 85
Breezy
- 41
- 75
Mostly Sunny
- 53
- 81
Breezy
- 52
- 89
Slight Chance Thunderstorms
- 47
- 80
Slight Chance Thunderstorms
- 47
- 78
Chance Rain Showers
Today 11 May Oliver
Mostly sunny. Windy, warmer. Highs in the lower 80s. Southwest Winds 20 to 30 Mph.
Tonight 11 May Oliver
Mostly clear. Lows in the upper 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.
Mandan Lake Temperature Statistics
May Temperature
HAZEN (18.6 miles)
Lowest 7 May, 2026
15.8 °FAverage May
49 °FHighest 3 May, 2026
75.2 °F
Climate (2021–Present)
HAZEN (18.6 miles)
Average Low 2021–2026
30.3 °FAverage 2021–2026
43.1 °FAverage High 2021–2026
55 °F