New Castle Weather Forecast

    • 52
    • 88

    Partly Sunny

    • 54
    • 90

    Mostly Sunny

    • 57
    • 91

    Partly Sunny

    • 56
    • 91

    Partly Sunny

    • 57
    • 92

    Partly Sunny

    • 58
    • 94

    Slight Chance Thunderstorms

Today 16 Aug Debeque to Silt Corridor

Mostly sunny. Highs in the 80s.

Tonight 16 Aug Debeque to Silt Corridor

Mostly clear. Lows 45 to 55.

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New Castle Temperature Statistics

August Temperature

Garfield County Regional Airport (9.9 miles)

  • Lowest 6 August, 2026

    53.1 °F

  • Average August

    78.1 °F

  • Highest 2 August, 2026

    100.9 °F

Climate (2021–2026)

Garfield County Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    64.8 °F
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