Derby Weather Forecast

    • 70
    • 82

    Chance Thunderstorms

    • 69
    • 86

    Chance Thunderstorms

    • 71
    • 91

    Partly Sunny

    • 66
    • 86

    Partly Sunny

    • 68
    • 87

    Partly Sunny

    • 69
    • 89

    Partly Sunny

Today 8 May Frio

Mostly cloudy. A slight chance of Showers and Thunderstorms this morning. Highs in the lower 80s. East Winds around 5 Mph. Chance of rain 20 percent.

Tonight 8 May Frio

Partly cloudy with a chance of Showers and Thunderstorms. Lows around 70. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Derby Temperature Statistics

May Temperature

Cotulla, Cotulla-La Salle County Airport (21.7 miles)

  • Lowest 2 May, 2026

    54.6 °F

  • Average May

    71.8 °F

  • Highest 5 May, 2026

    98.1 °F

Climate (2021–Present)

Cotulla, Cotulla-La Salle County Airport (21.7 miles)

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  • Average Low 2021–2026

    64.6 °F

  • Average 2021–2026

    76.1 °F

  • Average High 2021–2026

    88.3 °F
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