Colchester Weather Forecast

    • 45
    • 66

    Increasing Clouds

    • 50
    • 69

    Rain Showers Likely

    • 54
    • 65

    Rain Showers Likely

    • 57
    • 75

    Mostly Cloudy

    • 57
    • 79

    Mostly Cloudy

    • 60
    • 82

    Slight Chance Thunderstorms

Today 20 May McDonough

Sunny. Highs in the mid 60s. Northeast Winds around 10 Mph.

Tonight 20 May McDonough

Mostly clear. Lows in the mid 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

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Colchester Temperature Statistics

May Temperature

Macomb Municipal Airport (9.9 miles)

  • Lowest 1 May, 2026

    35.2 °F

  • Average May

    60.4 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

Macomb Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    64.4 °F
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