Derby Weather Forecast

    • 75
    • 99

    Hot

    • 75
    • 98

    Hot

    • 76
    • 98

    Hot

    • 75
    • 97

    Hot

    • 75
    • 97

    Hot

    • 75
    • 97

    Hot

    • 76
    • 97

    Partly Sunny

Today 21 Sep Frio

Partly cloudy with a slight chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs in the mid 90s.

Tonight 21 Sep Frio

Mostly clear. Lows in the mid 70s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Derby Temperature Statistics

September Temperature

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

  • Lowest 6 September, 2026

    74.6 °F

  • Average September

    90.6 °F

  • Highest 3 September, 2026

    106.6 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    64.7 °F

  • Average 2021–2026

    76.4 °F

  • Average High 2021–2026

    88.6 °F
Get WillyWeather+ to remove ads