Rainbow Spring Weather Forecast

    • 35
    • 58

    Mostly Sunny

    • 38
    • 62

    Partly Sunny

    • 40
    • 65

    Partly Sunny

    • 40
    • 64

    Partly Sunny

    • 44
    • 68

    Mostly Sunny

    • 46
    • 72

    Partly Sunny

    • 45
    • 71

    Partly Sunny

Today 25 Apr Lower Columbia Basin of Washington

Sunny. Highs in the lower to mid 60s. Northwest wind 5 to 10 Mph.

Tonight 25 Apr Lower Columbia Basin of Washington

Mostly clear. Lows in the mid to upper 30s. North wind 5 to 10 Mph in the Evening, becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Spring Temperature Statistics

April Temperature

Tri-Cities Airport (39.8 miles)

  • Lowest 8 April, 2026

    31.6 °F

  • Average April

    53.4 °F

  • Highest 6 April, 2026

    79.6 °F

Climate (2021–Present)

Tri-Cities Airport (39.8 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    68.1 °F
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