Helvetia Weather Forecast

    • 63
    • 85

    Rain Showers Likely

    • 62
    • 81

    Rain Showers Likely

    • 63
    • 83

    Chance Thunderstorms

    • 66
    • 87

    Slight Chance Thunderstorms

    • 67
    • 88

    Slight Chance Thunderstorms

    • 67
    • 88

    Chance Thunderstorms

Today 22 Sep Tucson Metro Area including Tucson/Green Valley/Marana/Vail

Mostly cloudy. Chance of Showers in the Morning, then chance of Showers and Thunderstorms in the afternoon. Highs 87 to 93. Southeast wind around 10 Mph. Chance of precipitation 50 percent.

Tonight 22 Sep Tucson Metro Area including Tucson/Green Valley/Marana/Vail

Mostly cloudy with chance of Showers and slight chance of Thunderstorms. Lows 66 to 72. Southeast wind 10 to 20 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helvetia Temperature Statistics

September Temperature

Tucson, Tucson International Airport (21.1 miles)

  • Lowest 16 September, 2026

    69.7 °F

  • Average September

    85.7 °F

  • Highest 10 September, 2026

    101.6 °F

Climate (2021–2026)

Tucson, Tucson International Airport (21.1 miles)

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  • Average Low 2021–2026

    59.3 °F

  • Average 2021–2026

    72.5 °F

  • Average High 2021–2026

    86.4 °F
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