Rainbow Spring Weather Forecast

    • 41
    • 70

    Becoming Sunny

    • 47
    • 77

    Mostly Sunny

    • 48
    • 80

    Sunny

    • 53
    • 82

    Sunny

    • 54
    • 85

    Sunny

    • 61
    • 91

    Partly Sunny

    • 58
    • 97

    Mostly Sunny

Today 10 Jun Lower Columbia Basin of Washington

Sunny. Highs in the lower to mid 70s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 10 Jun Lower Columbia Basin of Washington

Mostly clear. Lows in the lower to mid 40s. West wind 5 to 15 Mph. Gusts up to 25 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Spring Temperature Statistics

June Temperature

Tri-Cities Airport (39.8 miles)

  • Lowest 7 June, 2026

    44.7 °F

  • Average June

    64.2 °F

  • Highest 2 June, 2026

    84.7 °F

Climate (2021–Present)

Tri-Cities Airport (39.8 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    68.1 °F
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