Montgomery Reservoir Weather Forecast

    • 78
    • 96

    Chance Rain Showers

    • 78
    • 96

    Chance Thunderstorms

    • 77
    • 96

    Chance Thunderstorms

    • 76
    • 96

    Chance Thunderstorms

    • 78
    • 97

    Slight Chance Thunderstorms

    • 78
    • 98

    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 107.

Tonight 23 Sep Inland Cameron

Partly cloudy. 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 Forecast NOAA

  • Temperature Real-Time

Montgomery Reservoir Temperature Statistics

September Temperature

Harlingen, Rio Grande Valley International Airport (4.3 miles)

  • Lowest 20 September, 2026

    72 °F

  • Average September

    89.5 °F

  • Highest 2 September, 2026

    104.6 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (4.3 miles)

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  • Average Low 2021–2026

    65.8 °F

  • Average 2021–2026

    76.1 °F

  • Average High 2021–2026

    87 °F
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