Saint Marys Lake Weather Forecast

    • 33
    • 54

    Slight Chance Rain

    • 35
    • 55

    Mostly Cloudy

    • 36
    • 59

    Partly Sunny

    • 25
    • 56

    Mostly Cloudy

    • 21
    • 36

    Partly Sunny

    • 26
    • 46

    Mostly Cloudy

    • 27
    • 43

    Mostly Cloudy

Today 18 Mar Barnes

Partly sunny. Highs in the mid 50s. West Winds around 5 Mph.

Tonight 18 Mar Barnes

Mostly cloudy. A slight chance of light rain this evening. Patchy fog. Lows in the mid 30s. Northeast Winds around 10 Mph shifting to the southeast after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Marys Lake Temperature Statistics

March Temperature

Valley City (8.7 miles)

  • Lowest 16 March, 2026

    -4 °F

  • Average March

    24.4 °F

  • Highest 8 March, 2026

    62.6 °F

Climate (2021–Present)

Valley City (8.7 miles)

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  • Average Low 2021–2026

    32 °F

  • Average 2021–2026

    42 °F

  • Average High 2021–2026

    52 °F
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