Rio Rico Northwest Weather Forecast

    • 66
    • 89

    Rain Showers Likely

    • 65
    • 88

    Thunderstorms Likely

    • 66
    • 90

    Slight Chance Thunderstorms

    • 65
    • 91

    Slight Chance Thunderstorms

    • 66
    • 93

    Slight Chance Thunderstorms

    • 66
    • 95

    Mostly Sunny

Today 18 Sep Upper Santa Cruz River and Altar Valleys including Nogales

Mostly sunny in the Morning, then mostly cloudy with a 50 percent chance of Showers and Thunderstorms in the afternoon. Highs 85 to 91.

Tonight 18 Sep Upper Santa Cruz River and Altar Valleys including Nogales

Mostly cloudy. Chance of Showers and Thunderstorms in the Evening, then chance of Showers and slight chance of Thunderstorms after midnight. Lows 64 to 69. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Rico Northwest Temperature Statistics

September Temperature

Nogales, Nogales International Airport (11.2 miles)

  • Lowest 14 September, 2025

    62.1 °F

  • Average September

    76.4 °F

  • Highest 9 September, 2025

    95 °F

Climate (2020–Present)

Nogales, Nogales International Airport (11.2 miles)

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  • Average Low 2020–2025

    50.1 °F

  • Average 2020–2025

    65.7 °F

  • Average High 2020–2025

    81.7 °F
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