Los Fresnos Weather Forecast

    • 79
    • 96

    Chance Thunderstorms

    • 80
    • 96

    Rain Showers Likely

    • 79
    • 96

    Chance Thunderstorms

    • 79
    • 95

    Chance Thunderstorms

    • 79
    • 96

    Slight Chance Thunderstorms

    • 80
    • 97

    Slight Chance Thunderstorms

Today 23 Sep Inland Cameron

Mostly sunny with a chance of Showers. A chance of Thunderstorms in the afternoon. Humid with Highs in the mid 90s. Northeast Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of rain 50 percent. Heat index Values up to 108.

Tonight 23 Sep Inland Cameron

Partly cloudy in the Evening, then clearing. Humid with Lows in the upper 70s. East Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Real-Time

Los Fresnos Temperature Statistics

September Temperature

Port Isabel, Port Isabel-Cameron County Airport (9.9 miles)

  • Lowest 20 September, 2026

    75 °F

  • Average September

    88.1 °F

  • Highest 10 September, 2026

    100.7 °F

Climate (2021–2026)

Port Isabel, Port Isabel-Cameron County Airport (9.9 miles)

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  • Average Low 2021–2026

    68.8 °F

  • Average 2021–2026

    76.4 °F

  • Average High 2021–2026

    84.2 °F
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