Derby Weather Forecast

    • 58
    • 97

    Hot

    • 58
    • 95

    Mostly Sunny

    • 61
    • 91

    Mostly Sunny

    • 62
    • 91

    Mostly Sunny

    • 63
    • 94

    Mostly Sunny

    • 61
    • 95

    Mostly Sunny

    • 60
    • 92

    Mostly Sunny

Today 21 Mar Frio

Sunny. Highs in the mid 90s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Mar Frio

Clear. Lows in the upper 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Real-Time

Derby Temperature Statistics

March Temperature

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

  • Lowest 17 March, 2026

    39.7 °F

  • Average March

    72.9 °F

  • Highest 15 March, 2026

    99.6 °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 °F

  • Average High 2021–2026

    88.4 °F
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