Gillette Weather Forecast

    • 56
    • 84

    Decreasing Clouds

    • 60
    • 83

    Slight Chance Thunderstorms

    • 60
    • 88

    Slight Chance Thunderstorms

    • 59
    • 89

    Mostly Sunny

    • 58
    • 89

    Partly Sunny

    • 58
    • 88

    Partly Sunny

Today 17 Jul Northern Campbell

Partly cloudy in the Morning, then clearing. Not as cool with Highs in the mid 80s. Southeast Winds 10 to 20 Mph with Gusts up to 30 Mph.

Tonight 17 Jul Northern Campbell

Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Lows in the upper 50s. Northeast Winds 10 to 15 Mph. Chance of rain 20 percent.

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Gillette Temperature Statistics

July Temperature

Gillette, Gillette-Campbell County Airport (3.7 miles)

  • Lowest 12 July, 2025

    46.7 °F

  • Average July

    74.2 °F

  • Highest 9 July, 2025

    97.6 °F

Climate (2020–Present)

Gillette, Gillette-Campbell County Airport (3.7 miles)

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  • Average Low 2020–2025

    34.7 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    60.6 °F
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