Blackwell Weather Forecast

    • 63
    • 98

    Isolated Thunderstorms

    • 60
    • 85

    Thunderstorms

    • 63
    • 88

    Chance Thunderstorms

    • 63
    • 87

    Rain Showers Likely

    • 62
    • 86

    Chance Thunderstorms

    • 60
    • 81

    Chance Thunderstorms

    • 57
    • 78

    Chance Rain Showers

Today 18 Sep St. Francois

Sunny with isolated Showers and Thunderstorms. Hot. Near steady temperature in the mid 90s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Sep St. Francois

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 60s. Southwest Winds around 5 Mph, becoming north around 5 Mph after midnight. Chance of rain 20 percent.

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Blackwell Temperature Statistics

September Temperature

Farmington Airport (21.7 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    75.3 °F

  • Highest 14 September, 2025

    96.8 °F

Climate (2020–Present)

Farmington Airport (21.7 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    66.7 °F
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