Mesa Lake Weather Forecast

    • 57
    • 78

    Chance Rain Showers

    • 60
    • 86

    Mostly Sunny

    • 61
    • 92

    Sunny

    • 60
    • 94

    Sunny

    • 58
    • 92

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

Today 21 Jul Lower Columbia Basin of Washington

Mostly cloudy with a 50 percent chance of rain Showers. Highs in the mid 70s to lower 80s. Southwest wind 5 to 10 Mph. Rainfall Amounts less than a tenth of an inch.

Tonight 21 Jul Lower Columbia Basin of Washington

Partly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the mid to upper 50s. Northwest wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mesa Lake Temperature Statistics

July Temperature

Tri-Cities Airport (20.5 miles)

  • Lowest 6 July, 2025

    52.6 °F

  • Average July

    77.4 °F

  • Highest 13 July, 2025

    104.6 °F

Climate (2020–Present)

Tri-Cities Airport (20.5 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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