Thornton Weather Forecast

    • 48
    • 74

    Increasing Clouds

    • 45
    • 72

    Mostly Cloudy

    • 46
    • 74

    Mostly Sunny

    • 47
    • 79

    Partly Sunny

    • 45
    • 75

    Mostly Sunny

    • 47
    • 81

    Mostly Sunny

Today 7 May Washington Palouse

Sunny. Highs in the 70s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph.

Tonight 7 May Washington Palouse

Partly cloudy. Lows in the mid 40s to lower 50s. South wind 5 to 10 Mph.

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  • Temperature Real-Time

Thornton Temperature Statistics

May Temperature

Pullman / Moscow Regional Airport (28.6 miles)

  • Lowest 1 May, 2026

    40.6 °F

  • Average May

    59.6 °F

  • Highest 2 May, 2026

    77.6 °F

Climate (2021–Present)

Pullman / Moscow Regional Airport (28.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    59.6 °F
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