Harrison Lake Weather Forecast

    • 47
    • 64

    Rain Showers Likely

    • 49
    • 65

    Mostly Cloudy

    • 50
    • 66

    Slight Chance Rain Showers

    • 51
    • 67

    Mostly Cloudy

    • 50
    • 67

    Mostly Cloudy

    • 50
    • 67

    Partly Sunny

    • 51
    • 69

    Partly Sunny

Today 16 Sep Nelson

Partly cloudy. A slight chance of Showers. Highs 65 to 70. Lows 50 to 55.

Tonight 16 Sep Nelson

Mostly cloudy. Isolated Showers this evening. Lows in the mid 40s. East Winds around 5 Mph shifting to the north after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harrison Lake Temperature Statistics

September Temperature

Grand Forks Air Force Base (29.2 miles)

  • Lowest 13 September, 2026

    41.9 °F

  • Average September

    65.6 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Grand Forks Air Force Base (29.2 miles)

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  • Average Low 2021–2026

    31.7 °F

  • Average 2021–2026

    42.2 °F

  • Average High 2021–2026

    52.2 °F
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