Spencer Weather Forecast

    • 34
    • 55

    Decreasing Clouds

    • 38
    • 63

    Mostly Sunny

    • 41
    • 65

    Mostly Sunny

    • 42
    • 68

    Partly Sunny

    • 37
    • 65

    Mostly Cloudy

    • 34
    • 55

    Mostly Cloudy

Today 17 Mar Beaverhead/Lemhi Highlands

Mostly sunny. Not as cool. Highs 50 to 60.

Tonight 17 Mar Beaverhead/Lemhi Highlands

Decreasing Clouds. Lows 29 to 39.

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Spencer Temperature Statistics

March Temperature

Rexburg, Rexburg-Madison County Airport (41 miles)

  • Lowest 11 March, 2026

    16 °F

  • Average March

    40.3 °F

  • Highest 12 March, 2026

    57 °F

Climate (2021–Present)

Rexburg, Rexburg-Madison County Airport (41 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    58.3 °F
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