Mertzon Weather Forecast

    • 29
    • 60

    Becoming Sunny

    • 44
    • 67

    Mostly Cloudy

    • 16
    • 50

    Wintry Mix

    • 8
    • 24

    Chance Wintry Mix

    • 10
    • 30

    Partly Sunny

    • 18
    • 40

    Mostly Sunny

Today 21 Jan Irion

Sunny. Highs in the upper 50s. West Winds 5 to 10 Mph, becoming north this afternoon.

Tonight 21 Jan Irion

Mostly clear in the Evening, then becoming partly cloudy. Colder with Lows around 30. North Winds around 5 Mph, becoming east after midnight.

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Mertzon Temperature Statistics

January Temperature

San Angelo, Mathis Field (19.9 miles)

  • Lowest 18 January, 2026

    17.1 °F

  • Average January

    51.8 °F

  • Highest 7 January, 2026

    82 °F

Climate (2021–Present)

San Angelo, Mathis Field (19.9 miles)

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  • Average Low 2021–2026

    55.1 °F

  • Average 2021–2026

    68.1 °F

  • Average High 2021–2026

    81.9 °F
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