Chatham Weather Forecast

    • 56
    • 81

    Partly Sunny

    • 60
    • 73

    Chance Rain Showers

    • 58
    • 70

    Rain Showers

    • 54
    • 67

    Chance Rain Showers

    • 50
    • 60

    Chance Rain Showers

    • 50
    • 60

    Chance Rain Showers

Today 18 Sep Morris

Sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 18 Sep Morris

Mostly clear in the Evening, then becoming partly cloudy. Cooler with Lows in the mid 50s. North Winds around 5 Mph.

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Chatham Temperature Statistics

September Temperature

Morristown Municipal (4.3 miles)

  • Lowest 15 September, 2026

    48.2 °F
  • Average September

    67.5 °F
  • Highest 3 September, 2026

    87.8 °F

Climate (2021–2026)

Morristown Municipal (4.3 miles)

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  • Average Low 2021–2026

    43.1 °F
  • Average 2021–2026

    51.8 °F
  • Average High 2021–2026

    63.9 °F
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