Gillette Weather Forecast

    • 20
    • 41

    Becoming Sunny

    • 26
    • 44

    Chance Snow

    • 23
    • 39

    Chance Snow

    • 21
    • 40

    Mostly Cloudy

    • 24
    • 44

    Partly Sunny

    • 25
    • 47

    Partly Sunny

    • 28
    • 51

    Mostly Cloudy

Today 27 Jan Northern Campbell

Mostly sunny. Highs in the lower 40s. Northwest Winds 5 to 10 Mph.

Tonight 27 Jan Northern Campbell

Mostly clear. Lows 15 to 20. Southwest Winds 5 to 10 Mph.

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Gillette Temperature Statistics

January Temperature

Gillette, Gillette-Campbell County Airport (3.7 miles)

  • Lowest 24 January, 2026

    -11 °F

  • Average January

    29.9 °F

  • Highest 12 January, 2026

    61.6 °F

Climate (2021–Present)

Gillette, Gillette-Campbell County Airport (3.7 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    60.9 °F
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