Maxwell Weather Forecast

    • 74
    • 100

    Slight Chance Thunderstorms

    • 73
    • 100

    Chance Thunderstorms

    • 74
    • 99

    Chance Thunderstorms

    • 72
    • 95

    Rain Showers Likely

    • 72
    • 93

    Rain Showers Likely

    • 72
    • 94

    Chance Thunderstorms

Today 18 Aug Caldwell

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs around 101. Southwest Winds around 5 Mph, becoming southeast around 5 Mph this afternoon. Highest heat index Readings up to 106.

Tonight 18 Aug Caldwell

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Maxwell Temperature Statistics

August Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 5 August, 2025

    70 °F

  • Average August

    85.7 °F

  • Highest 2 August, 2025

    102 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    59.2 °F

  • Average 2020–2025

    69.8 °F

  • Average High 2020–2025

    81.5 °F
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