Diversion Lake Weather Forecast

    • 46
    • 78

    Slight Chance Thunderstorms

    • 42
    • 67

    Chance Thunderstorms

    • 41
    • 62

    Rain Showers Likely

    • 45
    • 72

    Partly Sunny

    • 50
    • 78

    Partly Sunny

    • 52
    • 82

    Slight Chance Thunderstorms

Today 20 Jun Southern Rocky Mountain Front

Warmer. Mostly sunny. Slight chance of rain Showers early in the afternoon. Slight chance of Thunderstorms late in the afternoon. Highs 64 to 76. West Winds 5 to 15 Mph. Gusts up to 35 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 20 Jun Southern Rocky Mountain Front

Mostly clear. A 20 percent chance of rain Showers in the evening. Lows 40 to 46. West Winds 5 to 15 Mph with Gusts to around 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diversion Lake Temperature Statistics

June Temperature

Great Falls, Great Falls International Airport (62.8 miles)

  • Lowest 14 June, 2026

    38.6 °F

  • Average June

    57.3 °F

  • Highest 16 June, 2026

    85.6 °F

Climate (2021–2026)

Great Falls, Great Falls International Airport (62.8 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    59.2 °F
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