Johnston Lake Weather Forecast

    • 41
    • 59

    Rain Showers Likely

    • 19
    • 45

    Wintry Mix

    • 8
    • 23

    Snow/Sleet

    • -2
    • 21

    Partly Sunny

    • 14
    • 35

    Mostly Sunny

    • 19
    • 45

    Partly Sunny

Today 22 Jan Young

Partly sunny. Highs in the upper 50s. Southeast Winds around 5 Mph.

Tonight 22 Jan Young

Mostly cloudy. A 20 percent chance of Showers after midnight. Lows in the lower 40s. East Winds around 5 Mph.

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Johnston Lake Temperature Statistics

January Temperature

Graham, Graham Municipal Airport (8.7 miles)

  • Lowest 18 January, 2026

    13.8 °F

  • Average January

    49.4 °F

  • Highest 5 January, 2026

    81.5 °F

Climate (2021–Present)

Graham, Graham Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    78.3 °F
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