Hartline Weather Forecast

    • 41
    • 65

    Mostly Sunny

    • 43
    • 68

    Mostly Sunny

    • 44
    • 70

    Partly Sunny

    • 36
    • 66

    Blowing Dust

    • 41
    • 60

    Mostly Cloudy

    • 39
    • 59

    Mostly Cloudy

    • 38
    • 59

    Mostly Sunny

Today 14 Oct Upper Columbia Basin

Sunny. Highs in the 60s. Light wind.

Tonight 14 Oct Upper Columbia Basin

Mostly clear. Lows in the upper 30s to lower 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartline Temperature Statistics

October Temperature

Ephrata, Ephrata Municipal Airport (32.3 miles)

  • Lowest 12 October, 2026

    36 °F

  • Average October

    59.3 °F

  • Highest 3 October, 2026

    80.7 °F

Climate (2021–2026)

Ephrata, Ephrata Municipal Airport (32.3 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    64 °F
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