Sweetwater Lake Weather Forecast

    • 57
    • 63

    Rain Showers Likely

    • 55
    • 68

    Partly Sunny

    • 48
    • 66

    Mostly Sunny

    • 45
    • 60

    Mostly Sunny

    • 48
    • 61

    Partly Sunny

    • 44
    • 61

    Partly Sunny

    • 41
    • 55

    Partly Sunny

Today 28 Sep Benson

Partly cloudy. Highs 60 to 65. Lows 35 to 40.

Tonight 28 Sep Benson

A chance of Thunderstorms this evening. Cloudy with a chance of Showers. Patchy fog after midnight. Lows in the mid 50s. East Winds around 5 Mph shifting to the north after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Lake Temperature Statistics

September Temperature

Devils Lake, Devils Lake Municipal Airport (9.3 miles)

  • Lowest 13 September, 2026

    41 °F

  • Average September

    61.8 °F

  • Highest 5 September, 2026

    82.7 °F

Climate (2021–2026)

Devils Lake, Devils Lake Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    32.1 °F

  • Average 2021–2026

    41.3 °F

  • Average High 2021–2026

    50.3 °F
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