Rainbow Spring Weather Forecast

    • 39
    • 59

    Increasing Clouds

    • 35
    • 62

    Mostly Sunny

    • 44
    • 59

    Rain Showers Likely

    • 37
    • 58

    Chance Rain Showers

    • 37
    • 57

    Partly Sunny

    • 37
    • 57

    Partly Sunny

Today 16 Oct Lower Columbia Basin of Washington

Sunny. Widespread frost in the morning. Highs in the lower to mid 60s. Light Wind, becoming southwest 5 to 10 Mph in the afternoon.

Tonight 16 Oct Lower Columbia Basin of Washington

Partly cloudy. Lows in the upper 30s to lower 40s. Southwest wind 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Spring Temperature Statistics

October Temperature

Tri-Cities Airport (39.8 miles)

  • Lowest 6 October, 2025

    35.1 °F

  • Average October

    56.7 °F

  • Highest 8 October, 2025

    78.1 °F

Climate (2020–Present)

Tri-Cities Airport (39.8 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    67.9 °F
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