Decatur Weather Forecast

    • 62
    • 79

    Chance Thunderstorms

    • 63
    • 78

    Chance Thunderstorms

    • 60
    • 82

    Mostly Cloudy

    • 42
    • 62

    Slight Chance Rain Showers

    • 49
    • 68

    Sunny

    • 54
    • 76

    Mostly Sunny

Today 9 Mar DeKalb

Partly sunny in the Morning, then clearing. Areas of fog in the morning. Highs in the upper 70s. Light west Winds.

Tonight 9 Mar DeKalb

Mostly cloudy. Near steady temperature in the upper 50s. Light west Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decatur Temperature Statistics

March Temperature

Atlanta, De Kalb-Peachtree Airport (6.8 miles)

  • Lowest 1 March, 2026

    42.1 °F

  • Average March

    61.1 °F

  • Highest 6 March, 2026

    84 °F

Climate (2021–Present)

Atlanta, De Kalb-Peachtree Airport (6.8 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    63 °F

  • Average High 2021–2026

    73.6 °F
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