Thornton Weather Forecast

    • 55
    • 86

    Rain Showers

    • 48
    • 77

    Mostly Sunny

    • 50
    • 77

    Mostly Sunny

    • 50
    • 80

    Chance Rain Showers

    • 54
    • 75

    Rain Showers Likely

    • 52
    • 79

    Chance Rain Showers

    • 50
    • 74

    Chance Rain Showers

Today 14 Jun Northern Grafton

Partly sunny with a 20 percent chance of Showers. Highs in the lower 80s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 14 Jun Northern Grafton

Rain and scattered Thunderstorms. Some Thunderstorms may produce heavy rainfall. Lows in the mid 50s. South Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

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Thornton Temperature Statistics

June Temperature

Plymouth Municipal Airport (8.7 miles)

  • Lowest 2 June, 2026

    36 °F

  • Average June

    65.2 °F

  • Highest 12 June, 2026

    88.5 °F

Climate (2021–Present)

Plymouth Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    56.9 °F
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