Rat Lake Weather Forecast

    • 29
    • 49

    Mostly Sunny

    • 35
    • 61

    Mostly Sunny

    • 37
    • 64

    Mostly Cloudy

    • 37
    • 63

    Chance Rain Showers

    • 37
    • 63

    Slight Chance Rain

    • 34
    • 59

    Chance Rain/Snow

Today 30 Apr Gallatin and Madison County Mountains and Centennial Mountains

Sunny. Highs 39 to 51. North Winds up to 15 Mph with Gusts to around 30 Mph.

Tonight 30 Apr Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 23 to 31. Northeast Winds up to 10 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rat Lake Temperature Statistics

April Temperature

Ennis - Big Sky Airport (24.9 miles)

  • Lowest 17 April, 2026

    15.8 °F

  • Average April

    41.4 °F

  • Highest 7 April, 2026

    68 °F

Climate (2021–Present)

Ennis - Big Sky Airport (24.9 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    56.5 °F
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