Cameron County District Number One Reservoir Weather Forecast

    • 79
    • 99

    Hot

    • 79
    • 101

    Hot

    • 78
    • 101

    Hot

    • 78
    • 100

    Chance Thunderstorms

    • 77
    • 97

    Chance Thunderstorms

    • 75
    • 97

    Chance Thunderstorms

    • 76
    • 98

    Slight Chance Thunderstorms

Today 13 Sep Inland Cameron

Sunny. Near steady temperature in the upper 90s. Southeast Winds around 15 Mph with Gusts up to 30 Mph. Heat index Values up to 112.

Tonight 13 Sep Inland Cameron

Mostly clear. A slight chance of Showers after midnight. Humid with Lows in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent. Heat index Values up to 107 early in the evening.

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Cameron County District Number One Reservoir Temperature Statistics

September Temperature

Harlingen, Rio Grande Valley International Airport (13 miles)

  • Lowest 1 September, 2026

    74.6 °F

  • Average September

    89.7 °F

  • Highest 2 September, 2026

    104.6 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (13 miles)

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  • Average Low 2021–2026

    65.8 °F

  • Average 2021–2026

    76 °F

  • Average High 2021–2026

    86.9 °F
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