Chatham Weather Forecast

    • 78
    • 95

    Becoming Sunny

    • 79
    • 97

    Chance Rain Showers

    • 78
    • 97

    Mostly Sunny

    • 78
    • 97

    Hot

    • 78
    • 95

    Mostly Sunny

    • 78
    • 93

    Mostly Sunny

    • 78
    • 93

    Partly Sunny

Today 31 Jul Coastal Harris

Mostly sunny. Hot. Near steady temperature in the mid 90s. South Winds 10 to 15 Mph. Heat index Values up to 107.

Tonight 31 Jul Coastal Harris

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the upper 70s. Southwest Winds 10 to 15 Mph. Heat index Values up to 106 early in the evening.

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  • Temperature Real-Time

Chatham Temperature Statistics

July Temperature

Houston / Ellington (16.2 miles)

  • Lowest 14 July, 2026

    73.4 °F

  • Average July

    84.6 °F

  • Highest 22 July, 2026

    102.2 °F

Climate (2021–2026)

Houston / Ellington (16.2 miles)

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  • Average Low 2021–2026

    64.3 °F

  • Average 2021–2026

    71.9 °F

  • Average High 2021–2026

    80.4 °F
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