Heidelberg Weather Forecast

    • 74
    • 91

    Rain Showers Likely

    • 74
    • 92

    Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 75
    • 94

    Chance Thunderstorms

Today 17 Sep Southern Hidalgo

Mostly sunny. A slight chance of Showers and Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 90s. Northeast Winds 5 to 10 Mph, becoming east with Gusts up to 20 Mph this afternoon. Chance of rain 70 percent.

Tonight 17 Sep Southern Hidalgo

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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Heidelberg Temperature Statistics

September Temperature

Harlingen, Rio Grande Valley International Airport (13.7 miles)

  • Lowest 14 September, 2025

    72 °F

  • Average September

    83.2 °F

  • Highest 4 September, 2025

    100 °F

Climate (2020–Present)

Harlingen, Rio Grande Valley International Airport (13.7 miles)

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  • Average Low 2020–2025

    65.4 °F

  • Average 2020–2025

    75.2 °F

  • Average High 2020–2025

    86.1 °F
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