Johnstown Weather Forecast

    • 28
    • 53

    Decreasing Clouds

    • 29
    • 55

    Mostly Sunny

    • 33
    • 61

    Partly Sunny

    • 30
    • 59

    Mostly Sunny

    • 35
    • 65

    Mostly Cloudy

    • 36
    • 66

    Partly Sunny

    • 30
    • 63

    Slight Chance Rain/Snow

Today 11 Feb Brown

Partly sunny. Highs in the lower 50s. South Winds 10 to 15 Mph.

Tonight 11 Feb Brown

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 20s. South Winds 10 to 15 Mph, becoming southwest after midnight.

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Johnstown Temperature Statistics

February Temperature

Ainsworth Regional Airport (2.5 miles)

  • Lowest 2 February, 2026

    23.5 °F

  • Average February

    40.6 °F

  • Highest 8 February, 2026

    68.9 °F

Climate (2021–Present)

Ainsworth Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    62.1 °F
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