Rio Grande Weather Forecast

    • 79
    • 88

    Rain Showers

    • 78
    • 90

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 77
    • 90

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 76
    • 92

    Rain Showers

Today 14 Sep Northeast

Mostly cloudy with numerous Showers with isolated Thunderstorms. Highs around 92. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 14 Sep Northeast

Mostly cloudy with isolated Thunderstorms. Numerous Showers, mainly in the evening. Lows around 82. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Grande Temperature Statistics

September Temperature

San Juan, Luis Munoz Marin International Airport (11.8 miles)

  • Lowest 8 September, 2025

    75.9 °F

  • Average September

    83.2 °F

  • Highest 10 September, 2025

    93 °F

Climate (2020–Present)

San Juan, Luis Munoz Marin International Airport (11.8 miles)

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  • Average Low 2020–2025

    76.9 °F

  • Average 2020–2025

    81.9 °F

  • Average High 2020–2025

    87.5 °F
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