Hanford Weather Forecast

    • 54
    • 80

    Increasing Clouds

    • 54
    • 79

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 55
    • 82

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

    • 53
    • 81

    Partly Sunny

Today 17 Sep Lower Columbia Basin of Washington

Sunny in the Morning, becoming partly cloudy. Highs in the mid to upper 70s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 17 Sep Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the lower to mid 50s. South wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hanford Temperature Statistics

September Temperature

Sunnyside Municipal Airport (25.5 miles)

  • Lowest 14 September, 2026

    42.4 °F

  • Average September

    60.3 °F

  • Highest 1 September, 2026

    85.5 °F

Climate (2021–2026)

Sunnyside Municipal Airport (25.5 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    63 °F
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