New Castle Weather Forecast

    • 48
    • 90

    Increasing Clouds

    • 40
    • 82

    Mostly Sunny

    • 44
    • 83

    Mostly Sunny

    • 45
    • 83

    Slight Chance Thunderstorms

    • 38
    • 78

    Chance Rain Showers

    • 33
    • 65

    Chance Rain Showers

Today 13 May Debeque to Silt Corridor

Sunny in the Morning, then becoming partly sunny. Highs 85 to 95. West Winds 10 to 15 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 13 May Debeque to Silt Corridor

Mostly cloudy in the evening then clearing. Lows in the 40s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph in the Evening, becoming light.

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New Castle Temperature Statistics

May Temperature

Garfield County Regional Airport (9.9 miles)

  • Lowest 7 May, 2026

    30 °F

  • Average May

    54.8 °F

  • Highest 11 May, 2026

    84.9 °F

Climate (2021–Present)

Garfield County Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    64.7 °F
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